CINXE.COM

<!doctype html><html lang="en-US" prefix="og: https://ogp.me/ns#"><head><meta charSet="utf-8"/><meta name="viewport" content="width=device-width,initial-scale=1"/><link rel="icon" href="https://developer.mozilla.org/favicon-48x48.bc390275e955dacb2e65.png"/><link rel="apple-touch-icon" href="https://developer.mozilla.org/apple-touch-icon.528534bba673c38049c2.png"/><meta name="theme-color" content="#ffffff"/><link rel="manifest" href="https://developer.mozilla.org/manifest.f42880861b394dd4dc9b.json"/><link rel="search" type="application/opensearchdescription+xml" href="/opensearch.xml" title="MDN Web Docs"/><title>From object to iframe — other embedding technologies - Learn web development | MDN</title><link rel="alternate" title="Von Objekt zu iframe — andere Einbettungstechnologien" href="https://developer.mozilla.org/de/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies" hrefLang="de"/><link rel="alternate" title="Desde object hasta iframe - otras tecnologías de incrustación" href="https://developer.mozilla.org/es/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies" hrefLang="es"/><link rel="alternate" title="Des objets aux iframes — autres techniques d'intégration" href="https://developer.mozilla.org/fr/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies" hrefLang="fr"/><link rel="alternate" title="object から iframe まで — その他の埋め込み技術" href="https://developer.mozilla.org/ja/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies" hrefLang="ja"/><link rel="alternate" title="<object> 로부터 <iframe>까지 — 기타 임베딩 기술" href="https://developer.mozilla.org/ko/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies" hrefLang="ko"/><link rel="alternate" title="Do objeto ao iframe - outras tecnologias de incorporação" href="https://developer.mozilla.org/pt-BR/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies" hrefLang="pt"/><link rel="alternate" title="От <object> к <iframe> - другие технологии внедрения" href="https://developer.mozilla.org/ru/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies" hrefLang="ru"/><link rel="alternate" title="从 object 到 iframe——其他嵌入技术" href="https://developer.mozilla.org/zh-CN/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies" hrefLang="zh"/><link rel="alternate" title="From object to iframe — other embedding technologies" href="https://developer.mozilla.org/en-US/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies" hrefLang="en"/><link rel="preload" as="font" type="font/woff2" href="/static/media/Inter.var.c2fe3cb2b7c746f7966a.woff2" crossorigin=""/><link rel="alternate" type="application/rss+xml" title="MDN Blog RSS Feed" href="https://developer.mozilla.org/en-US/blog/rss.xml" hrefLang="en"/><meta name="description" content="The topic of embedding other content in web documents can quickly become very complex, so in this article, we've tried to introduce it in a simple, familiar way that will immediately seem relevant, while still hinting at some of the more advanced features of the involved technologies. To start with, you are unlikely to use embedding for much beyond including third-party content like maps and videos on your pages. As you become more experienced, however, you are likely to start finding more uses for them."/><meta property="og:url" content="https://developer.mozilla.org/en-US/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies"/><meta property="og:title" content="From object to iframe — other embedding technologies - Learn web development | MDN"/><meta property="og:type" content="website"/><meta property="og:locale" content="en_US"/><meta property="og:description" content="The topic of embedding other content in web documents can quickly become very complex, so in this article, we've tried to introduce it in a simple, familiar way that will immediately seem relevant, while still hinting at some of the more advanced features of the involved technologies. To start with, you are unlikely to use embedding for much beyond including third-party content like maps and videos on your pages. As you become more experienced, however, you are likely to start finding more uses for them."/><meta property="og:image" content="https://developer.mozilla.org/mdn-social-share.d893525a4fb5fb1f67a2.png"/><meta property="og:image:type" content="image/png"/><meta property="og:image:height" content="1080"/><meta property="og:image:width" content="1920"/><meta property="og:image:alt" content="The MDN Web Docs logo, featuring a blue accent color, displayed on a solid black background."/><meta property="og:site_name" content="MDN Web Docs"/><meta name="twitter:card" content="summary_large_image"/><meta name="twitter:creator" content="MozDevNet"/><link rel="canonical" href="https://developer.mozilla.org/en-US/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies"/><style media="print">.article-actions-container,.document-toc-container,.language-menu,.main-menu-toggle,.on-github,.page-footer,.place,.sidebar,.top-banner,.top-navigation-main,ul.prev-next{display:none!important}.main-page-content,.main-page-content pre{padding:2px}.main-page-content pre{border-left-width:2px}</style><script src="/static/js/gtag.js" defer=""></script><script defer="" src="/static/js/main.1b60bff1.js"></script><link href="/static/css/main.959b5ea9.css" rel="stylesheet"/></head><body><script>if(document.body.addEventListener("load",(t=>{t.target.classList.contains("interactive")&&t.target.setAttribute("data-readystate","complete")}),{capture:!0}),window&&document.documentElement){const t={light:"#ffffff",dark:"#1b1b1b"};try{const e=window.localStorage.getItem("theme");e&&(document.documentElement.className=e,document.documentElement.style.backgroundColor=t[e]);const o=window.localStorage.getItem("nop");o&&(document.documentElement.dataset.nop=o)}catch(t){console.warn("Unable to read theme from localStorage",t)}}</script><div id="root"><ul id="nav-access" class="a11y-nav"><li><a id="skip-main" href="#content">Skip to main content</a></li><li><a id="skip-search" href="#top-nav-search-input">Skip to search</a></li><li><a id="skip-select-language" href="#languages-switcher-button">Skip to select language</a></li></ul><div class="page-wrapper category-html document-page"><div class="top-banner loading"><section class="place top container"></section></div><div class="sticky-header-container"><header class="top-navigation "><div class="container "><div class="top-navigation-wrap"><a href="/en-US/" class="logo" aria-label="MDN homepage"><svg id="mdn-docs-logo" xmlns="http://www.w3.org/2000/svg" x="0" y="0" viewBox="0 0 694.9 104.4" style="enable-background:new 0 0 694.9 104.4" xml:space="preserve" role="img"><title>MDN Web Docs</title><path d="M40.3 0 11.7 92.1H0L28.5 0h11.8zm10.4 0v92.1H40.3V0h10.4zM91 0 62.5 92.1H50.8L79.3 0H91zm10.4 0v92.1H91V0h10.4z" class="logo-m"></path><path d="M627.9 95.6h67v8.8h-67v-8.8z" class="logo-_"></path><path d="M367 42h-4l-10.7 30.8h-5.5l-10.8-26h-.4l-10.5 26h-5.2L308.7 42h-3.8v-5.6H323V42h-6.5l6.8 20.4h.4l10.3-26h4.7l11.2 26h.5l5.7-20.3h-6.2v-5.6H367V42zm34.9 20c-.4 3.2-2 5.9-4.7 8.2-2.8 2.3-6.5 3.4-11.3 3.4-5.4 0-9.7-1.6-13.1-4.7-3.3-3.2-5-7.7-5-13.7 0-5.7 1.6-10.3 4.7-14s7.4-5.5 12.9-5.5c5.1 0 9.1 1.6 11.9 4.7s4.3 6.9 4.3 11.3c0 1.5-.2 3-.5 4.7h-25.6c.3 7.7 4 11.6 10.9 11.6 2.9 0 5.1-.7 6.5-2 1.5-1.4 2.5-3 3-4.9l6 .9zM394 51.3c.2-2.4-.4-4.7-1.8-6.9s-3.8-3.3-7-3.3c-3.1 0-5.3 1-6.9 3-1.5 2-2.5 4.4-2.8 7.2H394zm51 2.4c0 5-1.3 9.5-4 13.7s-6.9 6.2-12.7 6.2c-6 0-10.3-2.2-12.7-6.7-.1.4-.2 1.4-.4 2.9s-.3 2.5-.4 2.9h-7.3c.3-1.7.6-3.5.8-5.3.3-1.8.4-3.7.4-5.5V22.3h-6v-5.6H416v27c1.1-2.2 2.7-4.1 4.7-5.7 2-1.6 4.8-2.4 8.4-2.4 4.6 0 8.4 1.6 11.4 4.7 3 3.2 4.5 7.6 4.5 13.4zm-7.7.6c0-4.2-1-7.4-3-9.5-2-2.2-4.4-3.3-7.4-3.3-3.4 0-6 1.2-8 3.7-1.9 2.4-2.9 5-3 7.7V57c0 3 1 5.6 3 7.7s4.5 3.1 7.6 3.1c3.6 0 6.3-1.3 8.1-3.9 1.8-2.7 2.7-5.9 2.7-9.6zm69.2 18.5h-13.2v-7.2c-1.2 2.2-2.8 4.1-4.9 5.6-2.1 1.6-4.8 2.4-8.3 2.4-4.8 0-8.7-1.6-11.6-4.9-2.9-3.2-4.3-7.7-4.3-13.3 0-5 1.3-9.6 4-13.7 2.6-4.1 6.9-6.2 12.8-6.2 5.7 0 9.8 2.2 12.3 6.5V22.3h-8.6v-5.6h15.8v50.6h6v5.5zM493.2 56v-4.4c-.1-3-1.2-5.5-3.2-7.3s-4.4-2.8-7.2-2.8c-3.6 0-6.3 1.3-8.2 3.9-1.9 2.6-2.8 5.8-2.8 9.6 0 4.1 1 7.3 3 9.5s4.5 3.3 7.4 3.3c3.2 0 5.8-1.3 7.8-3.8 2.1-2.6 3.1-5.3 3.2-8zm53.1-1.4c0 5.6-1.8 10.2-5.3 13.7s-8.2 5.3-13.9 5.3-10.1-1.7-13.4-5.1c-3.3-3.4-5-7.9-5-13.5 0-5.3 1.6-9.9 4.7-13.7 3.2-3.8 7.9-5.7 14.2-5.7s11 1.9 14.1 5.7c3 3.7 4.6 8.1 4.6 13.3zm-7.7-.2c0-4-1-7.2-3-9.5s-4.8-3.5-8.2-3.5c-3.6 0-6.4 1.2-8.3 3.7s-2.9 5.6-2.9 9.5c0 3.7.9 6.8 2.8 9.4 1.9 2.6 4.6 3.9 8.3 3.9 3.6 0 6.4-1.3 8.4-3.8 1.9-2.6 2.9-5.8 2.9-9.7zm45 5.8c-.4 3.2-1.9 6.3-4.4 9.1-2.5 2.9-6.4 4.3-11.8 4.3-5.2 0-9.4-1.6-12.6-4.8-3.2-3.2-4.8-7.7-4.8-13.7 0-5.5 1.6-10.1 4.7-13.9 3.2-3.8 7.6-5.7 13.2-5.7 2.3 0 4.6.3 6.7.8 2.2.5 4.2 1.5 6.2 2.9l1.5 9.5-5.9.7-1.3-6.1c-2.1-1.2-4.5-1.8-7.2-1.8-3.5 0-6.1 1.2-7.7 3.7-1.7 2.5-2.5 5.7-2.5 9.6 0 4.1.9 7.3 2.7 9.5 1.8 2.3 4.4 3.4 7.8 3.4 5.2 0 8.2-2.9 9.2-8.8l6.2 1.3zm34.7 1.9c0 3.6-1.5 6.5-4.6 8.5s-7 3-11.7 3c-5.7 0-10.6-1.2-14.6-3.6l1.2-8.8 5.7.6-.2 4.7c1.1.5 2.3.9 3.6 1.1s2.6.3 3.9.3c2.4 0 4.5-.4 6.5-1.3 1.9-.9 2.9-2.2 2.9-4.1 0-1.8-.8-3.1-2.3-3.8s-3.5-1.3-5.8-1.7-4.6-.9-6.9-1.4c-2.3-.6-4.2-1.6-5.7-2.9-1.6-1.4-2.3-3.5-2.3-6.3 0-4.1 1.5-6.9 4.6-8.5s6.4-2.4 9.9-2.4c2.6 0 5 .3 7.2.9 2.2.6 4.3 1.4 6.1 2.4l.8 8.8-5.8.7-.8-5.7c-2.3-1-4.7-1.6-7.2-1.6-2.1 0-3.7.4-5.1 1.1-1.3.8-2 2-2 3.8 0 1.7.8 2.9 2.3 3.6 1.5.7 3.4 1.2 5.7 1.6 2.2.4 4.5.8 6.7 1.4 2.2.6 4.1 1.6 5.7 3 1.4 1.6 2.2 3.7 2.2 6.6zM197.6 73.2h-17.1v-5.5h3.8V51.9c0-3.7-.7-6.3-2.1-7.9-1.4-1.6-3.3-2.3-5.7-2.3-3.2 0-5.6 1.1-7.2 3.4s-2.4 4.6-2.5 6.9v15.6h6v5.5h-17.1v-5.5h3.8V51.9c0-3.8-.7-6.4-2.1-7.9-1.4-1.5-3.3-2.3-5.6-2.3-3.2 0-5.5 1.1-7.2 3.3-1.6 2.2-2.4 4.5-2.5 6.9v15.8h6.9v5.5h-20.2v-5.5h6V42.4h-6.1v-5.6h13.4v6.4c1.2-2.1 2.7-3.8 4.7-5.2 2-1.3 4.4-2 7.3-2s5.3.7 7.5 2.1c2.2 1.4 3.7 3.5 4.5 6.4 1.1-2.5 2.7-4.5 4.9-6.1s4.8-2.4 7.9-2.4c3.5 0 6.5 1.1 8.9 3.3s3.7 5.6 3.7 10.2v18.2h6.1v5.5zm42.5 0h-13.2V66c-1.2 2.2-2.8 4.1-4.9 5.6-2.1 1.6-4.8 2.4-8.3 2.4-4.8 0-8.7-1.6-11.6-4.9-2.9-3.2-4.3-7.7-4.3-13.3 0-5 1.3-9.6 4-13.7 2.6-4.1 6.9-6.2 12.8-6.2s9.8 2.2 12.3 6.5V22.7h-8.6v-5.6h15.8v50.6h6v5.5zm-13.3-16.8V52c-.1-3-1.2-5.5-3.2-7.3s-4.4-2.8-7.2-2.8c-3.6 0-6.3 1.3-8.2 3.9-1.9 2.6-2.8 5.8-2.8 9.6 0 4.1 1 7.3 3 9.5s4.5 3.3 7.4 3.3c3.2 0 5.8-1.3 7.8-3.8 2.1-2.6 3.1-5.3 3.2-8zm61.5 16.8H269v-5.5h6V51.9c0-3.7-.7-6.3-2.2-7.9-1.4-1.6-3.4-2.3-5.7-2.3-3.1 0-5.6 1-7.4 3s-2.8 4.4-2.9 7v15.9h6v5.5h-19.3v-5.5h6V42.4h-6.2v-5.6h13.6V43c2.6-4.6 6.8-6.9 12.7-6.9 3.6 0 6.7 1.1 9.2 3.3s3.7 5.6 3.7 10.2v18.2h6v5.4h-.2z" class="logo-text"></path></svg></a><button title="Open main menu" type="button" class="button action has-icon main-menu-toggle" aria-haspopup="menu" aria-label="Open main menu" aria-expanded="false"><span class="button-wrap"><span class="icon icon-menu "></span><span class="visually-hidden">Open main menu</span></span></button></div><div class="top-navigation-main"><nav class="main-nav" aria-label="Main menu"><ul class="main-menu nojs"><li class="top-level-entry-container "><button type="button" id="references-button" class="top-level-entry menu-toggle" aria-controls="references-menu" aria-expanded="false">References</button><a href="/en-US/docs/Web" class="top-level-entry">References</a><ul id="references-menu" class="submenu references hidden inline-submenu-lg" aria-labelledby="references-button"><li class="apis-link-container mobile-only "><a href="/en-US/docs/Web" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">Overview / Web Technology</div><p class="submenu-item-description">Web technology reference for developers</p></div></a></li><li class="html-link-container "><a href="/en-US/docs/Web/HTML" class="submenu-item "><div class="submenu-icon html"></div><div class="submenu-content-container"><div class="submenu-item-heading">HTML</div><p class="submenu-item-description">Structure of content on the web</p></div></a></li><li class="css-link-container "><a href="/en-US/docs/Web/CSS" class="submenu-item "><div class="submenu-icon css"></div><div class="submenu-content-container"><div class="submenu-item-heading">CSS</div><p class="submenu-item-description">Code used to describe document style</p></div></a></li><li class="javascript-link-container "><a href="/en-US/docs/Web/JavaScript" class="submenu-item "><div class="submenu-icon javascript"></div><div class="submenu-content-container"><div class="submenu-item-heading">JavaScript</div><p class="submenu-item-description">General-purpose scripting language</p></div></a></li><li class="http-link-container "><a href="/en-US/docs/Web/HTTP" class="submenu-item "><div class="submenu-icon http"></div><div class="submenu-content-container"><div class="submenu-item-heading">HTTP</div><p class="submenu-item-description">Protocol for transmitting web resources</p></div></a></li><li class="apis-link-container "><a href="/en-US/docs/Web/API" class="submenu-item "><div class="submenu-icon apis"></div><div class="submenu-content-container"><div class="submenu-item-heading">Web APIs</div><p class="submenu-item-description">Interfaces for building web applications</p></div></a></li><li class="apis-link-container "><a href="/en-US/docs/Mozilla/Add-ons/WebExtensions" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">Web Extensions</div><p class="submenu-item-description">Developing extensions for web browsers</p></div></a></li><li class="apis-link-container desktop-only "><a href="/en-US/docs/Web" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">Web Technology</div><p class="submenu-item-description">Web technology reference for developers</p></div></a></li></ul></li><li class="top-level-entry-container active"><button type="button" id="guides-button" class="top-level-entry menu-toggle" aria-controls="guides-menu" aria-expanded="false">Guides</button><a href="/en-US/docs/Learn" class="top-level-entry">Guides</a><ul id="guides-menu" class="submenu guides hidden inline-submenu-lg" aria-labelledby="guides-button"><li class="apis-link-container mobile-only "><a href="/en-US/docs/Learn" class="submenu-item "><div class="submenu-icon learn"></div><div class="submenu-content-container"><div class="submenu-item-heading">Overview / MDN Learning Area</div><p class="submenu-item-description">Learn web development</p></div></a></li><li class="apis-link-container desktop-only "><a href="/en-US/docs/Learn" class="submenu-item "><div class="submenu-icon learn"></div><div class="submenu-content-container"><div class="submenu-item-heading">MDN Learning Area</div><p class="submenu-item-description">Learn web development</p></div></a></li><li class="html-link-container "><a href="/en-US/docs/Learn/HTML" class="submenu-item "><div class="submenu-icon html"></div><div class="submenu-content-container"><div class="submenu-item-heading">HTML</div><p class="submenu-item-description">Learn to structure web content with HTML</p></div></a></li><li class="css-link-container "><a href="/en-US/docs/Learn/CSS" class="submenu-item "><div class="submenu-icon css"></div><div class="submenu-content-container"><div class="submenu-item-heading">CSS</div><p class="submenu-item-description">Learn to style content using CSS</p></div></a></li><li class="javascript-link-container "><a href="/en-US/docs/Learn/JavaScript" class="submenu-item "><div class="submenu-icon javascript"></div><div class="submenu-content-container"><div class="submenu-item-heading">JavaScript</div><p class="submenu-item-description">Learn to run scripts in the browser</p></div></a></li><li class=" "><a href="/en-US/docs/Web/Accessibility" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">Accessibility</div><p class="submenu-item-description">Learn to make the web accessible to all</p></div></a></li></ul></li><li class="top-level-entry-container "><button type="button" id="mdn-plus-button" class="top-level-entry menu-toggle" aria-controls="mdn-plus-menu" aria-expanded="false">Plus</button><a href="/en-US/plus" class="top-level-entry">Plus</a><ul id="mdn-plus-menu" class="submenu mdn-plus hidden inline-submenu-lg" aria-labelledby="mdn-plus-button"><li class=" "><a href="/en-US/plus" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">Overview</div><p class="submenu-item-description">A customized MDN experience</p></div></a></li><li class=" "><a href="/en-US/plus/ai-help" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">AI Help</div><p class="submenu-item-description">Get real-time assistance and support</p></div></a></li><li class=" "><a href="/en-US/plus/updates" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">Updates</div><p class="submenu-item-description">All browser compatibility updates at a glance</p></div></a></li><li class=" "><a href="/en-US/plus/docs/features/overview" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">Documentation</div><p class="submenu-item-description">Learn how to use MDN Plus</p></div></a></li><li class=" "><a href="/en-US/plus/docs/faq" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">FAQ</div><p class="submenu-item-description">Frequently asked questions about MDN Plus</p></div></a></li></ul></li><li class="top-level-entry-container "><a class="top-level-entry menu-link" href="/en-US/curriculum/">Curriculum <sup class="new">New</sup></a></li><li class="top-level-entry-container "><a class="top-level-entry menu-link" href="/en-US/blog/">Blog</a></li><li class="top-level-entry-container "><button type="button" id="tools-button" class="top-level-entry menu-toggle" aria-controls="tools-menu" aria-expanded="false">Tools</button><ul id="tools-menu" class="submenu tools hidden inline-submenu-lg" aria-labelledby="tools-button"><li class=" "><a href="/en-US/play" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">Playground</div><p class="submenu-item-description">Write, test and share your code</p></div></a></li><li class=" "><a href="/en-US/observatory" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">HTTP Observatory</div><p class="submenu-item-description">Scan a website for free</p></div></a></li><li class=" "><a href="/en-US/plus/ai-help" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">AI Help</div><p class="submenu-item-description">Get real-time assistance and support</p></div></a></li></ul></li></ul></nav><div class="header-search"><form action="/en-US/search" class="search-form search-widget" id="top-nav-search-form" role="search"><label id="top-nav-search-label" for="top-nav-search-input" class="visually-hidden">Search MDN</label><input aria-activedescendant="" aria-autocomplete="list" aria-controls="top-nav-search-menu" aria-expanded="false" aria-labelledby="top-nav-search-label" autoComplete="off" id="top-nav-search-input" role="combobox" type="search" class="search-input-field" name="q" placeholder=" " required="" value=""/><button type="button" class="button action has-icon clear-search-button"><span class="button-wrap"><span class="icon icon-cancel "></span><span class="visually-hidden">Clear search input</span></span></button><button type="submit" class="button action has-icon search-button"><span class="button-wrap"><span class="icon icon-search "></span><span class="visually-hidden">Search</span></span></button><div id="top-nav-search-menu" role="listbox" aria-labelledby="top-nav-search-label"></div></form></div><div class="theme-switcher-menu"><button type="button" class="button action has-icon theme-switcher-menu small" aria-haspopup="menu"><span class="button-wrap"><span class="icon icon-theme-os-default "></span>Theme</span></button></div><ul class="auth-container"><li><a href="/users/fxa/login/authenticate/?next=%2Fen-US%2Fdocs%2FLearn%2FHTML%2FMultimedia_and_embedding%2FOther_embedding_technologies" class="login-link" rel="nofollow">Log in</a></li><li><a href="/users/fxa/login/authenticate/?next=%2Fen-US%2Fdocs%2FLearn%2FHTML%2FMultimedia_and_embedding%2FOther_embedding_technologies" target="_self" rel="nofollow" class="button primary mdn-plus-subscribe-link"><span class="button-wrap">Sign up for free</span></a></li></ul></div></div></header><div class="article-actions-container"><div class="container"><button type="button" class="button action has-icon sidebar-button" aria-label="Expand sidebar" aria-expanded="false" aria-controls="sidebar-quicklinks"><span class="button-wrap"><span class="icon icon-sidebar "></span></span></button><nav class="breadcrumbs-container" aria-label="Breadcrumb"><ol typeof="BreadcrumbList" vocab="https://schema.org/" aria-label="breadcrumbs"><li property="itemListElement" typeof="ListItem"><a href="/en-US/docs/Learn" class="breadcrumb" property="item" typeof="WebPage"><span property="name">Guides</span></a><meta property="position" content="1"/></li><li property="itemListElement" typeof="ListItem"><a href="/en-US/docs/Learn/HTML" class="breadcrumb" property="item" typeof="WebPage"><span property="name">HTML</span></a><meta property="position" content="2"/></li><li property="itemListElement" typeof="ListItem"><a href="/en-US/docs/Learn/HTML/Multimedia_and_embedding" class="breadcrumb" property="item" typeof="WebPage"><span property="name">Multimedia and embedding</span></a><meta property="position" content="3"/></li><li property="itemListElement" typeof="ListItem"><a href="/en-US/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies" class="breadcrumb-current-page" property="item" typeof="WebPage"><span property="name">From object to iframe — other embedding technologies</span></a><meta property="position" content="4"/></li></ol></nav><div class="article-actions"><button type="button" class="button action has-icon article-actions-toggle" aria-label="Article actions"><span class="button-wrap"><span class="icon icon-ellipses "></span><span class="article-actions-dialog-heading">Article Actions</span></span></button><ul class="article-actions-entries"><li class="article-actions-entry"><div class="languages-switcher-menu open-on-focus-within"><button id="languages-switcher-button" type="button" class="button action small has-icon languages-switcher-menu" aria-haspopup="menu"><span class="button-wrap"><span class="icon icon-language "></span>English (US)</span></button><div class="hidden"><ul class="submenu language-menu " aria-labelledby="language-menu-button"><li class=" "><form class="submenu-item locale-redirect-setting"><div class="group"><label class="switch"><input type="checkbox" name="locale-redirect"/><span class="slider"></span><span class="label">Remember language</span></label><a href="https://github.com/orgs/mdn/discussions/739" rel="external noopener noreferrer" target="_blank" title="Enable this setting to automatically switch to this language when it's available. (Click to learn more.)"><span class="icon icon-question-mark "></span></a></div></form></li><li class=" "><a data-locale="de" href="/de/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies" class="button submenu-item"><span>Deutsch</span><span title="Diese Übersetzung ist Teil eines Experiments."><span class="icon icon-experimental "></span></span></a></li><li class=" "><a data-locale="es" href="/es/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies" class="button submenu-item"><span>Español</span></a></li><li class=" "><a data-locale="fr" href="/fr/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies" class="button submenu-item"><span>Français</span></a></li><li class=" "><a data-locale="ja" href="/ja/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies" class="button submenu-item"><span>日本語</span></a></li><li class=" "><a data-locale="ko" href="/ko/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies" class="button submenu-item"><span>한국어</span></a></li><li class=" "><a data-locale="pt-BR" href="/pt-BR/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies" class="button submenu-item"><span>Português (do Brasil)</span></a></li><li class=" "><a data-locale="ru" href="/ru/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies" class="button submenu-item"><span>Русский</span></a></li><li class=" "><a data-locale="zh-CN" href="/zh-CN/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies" class="button submenu-item"><span>中文 (简体)</span></a></li></ul></div></div></li></ul></div></div></div></div><div class="main-wrapper"><div class="sidebar-container"><aside id="sidebar-quicklinks" class="sidebar" data-macro="LearnSidebar"><button type="button" class="button action backdrop" aria-label="Collapse sidebar"><span class="button-wrap"></span></button><nav aria-label="Related Topics" class="sidebar-inner"><header class="sidebar-actions"><section class="sidebar-filter-container"><div class="sidebar-filter "><label id="sidebar-filter-label" class="sidebar-filter-label" for="sidebar-filter-input"><span class="icon icon-filter"></span><span class="visually-hidden">Filter sidebar</span></label><input id="sidebar-filter-input" autoComplete="off" class="sidebar-filter-input-field false" type="text" placeholder="Filter" value=""/><button type="button" class="button action has-icon clear-sidebar-filter-button"><span class="button-wrap"><span class="icon icon-cancel "></span><span class="visually-hidden">Clear filter input</span></span></button></div></section></header><div class="sidebar-inner-nav"><div class="in-nav-toc"><div class="document-toc-container"><section class="document-toc"><header><h2 class="document-toc-heading">In this article</h2></header><ul class="document-toc-list"><li class="document-toc-item "><a class="document-toc-link" href="#a_short_history_of_embedding">A short history of embedding</a></li><li class="document-toc-item "><a class="document-toc-link" href="#active_learning_classic_embedding_uses">Active learning: classic embedding uses</a></li><li class="document-toc-item "><a class="document-toc-link" href="#iframes_in_detail">iframes in detail</a></li><li class="document-toc-item "><a class="document-toc-link" href="#the_embed_and_object_elements">The <embed> and <object> elements</a></li><li class="document-toc-item "><a class="document-toc-link" href="#test_your_skills!">Test your skills!</a></li><li class="document-toc-item "><a class="document-toc-link" href="#summary">Summary</a></li></ul></section></div></div><div class="sidebar-body"><ol><li class="section"><a href="/en-US/docs/Learn/Getting_started_with_the_web">Complete beginners start here!</a></li><li><details><summary>Getting started with the web</summary><ol><li><a href="/en-US/docs/Learn/Getting_started_with_the_web">Getting started with the web</a></li><li><a href="/en-US/docs/Learn/Getting_started_with_the_web/Installing_basic_software">Installing basic software</a></li><li><a href="/en-US/docs/Learn/Getting_started_with_the_web/What_will_your_website_look_like">What will your website look like?</a></li><li><a href="/en-US/docs/Learn/Getting_started_with_the_web/Dealing_with_files">Dealing with files</a></li><li><a href="/en-US/docs/Learn/Getting_started_with_the_web/HTML_basics">HTML basics</a></li><li><a href="/en-US/docs/Learn/Getting_started_with_the_web/CSS_basics">CSS basics</a></li><li><a href="/en-US/docs/Learn/Getting_started_with_the_web/JavaScript_basics">JavaScript basics</a></li><li><a href="/en-US/docs/Learn/Getting_started_with_the_web/Publishing_your_website">Publishing your website</a></li><li><a href="/en-US/docs/Learn/Getting_started_with_the_web/How_the_Web_works">How the web works</a></li></ol></details></li><li class="section"><a href="/en-US/docs/Learn/HTML">HTML — Structuring the web</a></li><li><details><summary>Introduction to HTML</summary><ol><li><a href="/en-US/docs/Learn/HTML/Introduction_to_HTML">Introduction to HTML</a></li><li><a href="/en-US/docs/Learn/HTML/Introduction_to_HTML/Getting_started">Getting started with HTML</a></li><li><a href="/en-US/docs/Learn/HTML/Introduction_to_HTML/The_head_metadata_in_HTML">What's in the head? Metadata in HTML</a></li><li><a href="/en-US/docs/Learn/HTML/Introduction_to_HTML/HTML_text_fundamentals">HTML text fundamentals</a></li><li><a href="/en-US/docs/Learn/HTML/Introduction_to_HTML/Creating_hyperlinks">Creating hyperlinks</a></li><li><a href="/en-US/docs/Learn/HTML/Introduction_to_HTML/Advanced_text_formatting">Advanced text formatting</a></li><li><a href="/en-US/docs/Learn/HTML/Introduction_to_HTML/Document_and_website_structure">Document and website structure</a></li><li><a href="/en-US/docs/Learn/HTML/Introduction_to_HTML/Debugging_HTML">Debugging HTML</a></li><li><a href="/en-US/docs/Learn/HTML/Introduction_to_HTML/Marking_up_a_letter">Marking up a letter</a></li><li><a href="/en-US/docs/Learn/HTML/Introduction_to_HTML/Structuring_a_page_of_content">Structuring a page of content</a></li></ol></details></li><li><details open=""><summary>Multimedia and embedding</summary><ol><li><a href="/en-US/docs/Learn/HTML/Multimedia_and_embedding">Multimedia and embedding</a></li><li><a href="/en-US/docs/Learn/HTML/Multimedia_and_embedding/Images_in_HTML">Images in HTML</a></li><li><a href="/en-US/docs/Learn/HTML/Multimedia_and_embedding/Video_and_audio_content">Video and audio content</a></li><li><em><a href="/en-US/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies" aria-current="page">From object to iframe — other embedding technologies</a></em></li><li><a href="/en-US/docs/Learn/HTML/Multimedia_and_embedding/Adding_vector_graphics_to_the_Web">Adding vector graphics to the web</a></li><li><a href="/en-US/docs/Learn/HTML/Multimedia_and_embedding/Responsive_images">Responsive images</a></li><li><a href="/en-US/docs/Learn/HTML/Multimedia_and_embedding/Mozilla_splash_page">Mozilla splash page</a></li></ol></details></li><li><details><summary>HTML tables</summary><ol><li><a href="/en-US/docs/Learn/HTML/Tables">HTML tables</a></li><li><a href="/en-US/docs/Learn/HTML/Tables/Basics">HTML table basics</a></li><li><a href="/en-US/docs/Learn/HTML/Tables/Advanced">HTML table advanced features and accessibility</a></li><li><a href="/en-US/docs/Learn/HTML/Tables/Structuring_planet_data">Structuring planet data</a></li></ol></details></li><li class="section"><a href="/en-US/docs/Learn/CSS">CSS — Styling the web</a></li><li><details><summary>CSS first steps</summary><ol><li><a href="/en-US/docs/Learn/CSS/First_steps">CSS first steps</a></li><li><a href="/en-US/docs/Learn/CSS/First_steps/What_is_CSS">What is CSS?</a></li><li><a href="/en-US/docs/Learn/CSS/First_steps/Getting_started">Getting started with CSS</a></li><li><a href="/en-US/docs/Learn/CSS/First_steps/How_CSS_is_structured">How CSS is structured</a></li><li><a href="/en-US/docs/Learn/CSS/First_steps/How_CSS_works">How CSS works</a></li><li><a href="/en-US/docs/Learn/CSS/First_steps/Styling_a_biography_page">Styling a biography page</a></li></ol></details></li><li><details><summary>CSS building blocks</summary><ol><li><a href="/en-US/docs/Learn/CSS/Building_blocks">CSS building blocks</a></li><li><a href="/en-US/docs/Learn/CSS/Building_blocks/Selectors">CSS selectors</a></li><li><a href="/en-US/docs/Learn/CSS/Building_blocks/Selectors/Type_Class_and_ID_Selectors">Type, class, and ID selectors</a></li><li><a href="/en-US/docs/Learn/CSS/Building_blocks/Selectors/Attribute_selectors">Attribute selectors</a></li><li><a href="/en-US/docs/Learn/CSS/Building_blocks/Selectors/Pseudo-classes_and_pseudo-elements">Pseudo-classes and pseudo-elements</a></li><li><a href="/en-US/docs/Learn/CSS/Building_blocks/Selectors/Combinators">Combinators</a></li><li><a href="/en-US/docs/Learn/CSS/Building_blocks/Cascade_and_inheritance">Cascade, specificity, and inheritance</a></li><li><a href="/en-US/docs/Learn/CSS/Building_blocks/Cascade_layers">Cascade layers</a></li><li><a href="/en-US/docs/Learn/CSS/Building_blocks/The_box_model">The box model</a></li><li><a href="/en-US/docs/Learn/CSS/Building_blocks/Backgrounds_and_borders">Backgrounds and borders</a></li><li><a href="/en-US/docs/Learn/CSS/Building_blocks/Handling_different_text_directions">Handling different text directions</a></li><li><a href="/en-US/docs/Learn/CSS/Building_blocks/Overflowing_content">Overflowing content</a></li><li><a href="/en-US/docs/Learn/CSS/Building_blocks/Values_and_units">CSS values and units</a></li><li><a href="/en-US/docs/Learn/CSS/Building_blocks/Sizing_items_in_CSS">Sizing items in CSS</a></li><li><a href="/en-US/docs/Learn/CSS/Building_blocks/Images_media_form_elements">Images, media, and form elements</a></li><li><a href="/en-US/docs/Learn/CSS/Building_blocks/Styling_tables">Styling tables</a></li><li><a href="/en-US/docs/Learn/CSS/Building_blocks/Advanced_styling_effects">Advanced styling effects</a></li><li><a href="/en-US/docs/Learn/CSS/Building_blocks/Debugging_CSS">Debugging CSS</a></li><li><a href="/en-US/docs/Learn/CSS/Building_blocks/Organizing">Organizing your CSS</a></li><li><a href="/en-US/docs/Learn/CSS/Building_blocks/Fundamental_CSS_comprehension">Fundamental CSS comprehension</a></li><li><a href="/en-US/docs/Learn/CSS/Building_blocks/Creating_fancy_letterheaded_paper">Creating fancy letterheaded paper</a></li><li><a href="/en-US/docs/Learn/CSS/Building_blocks/A_cool_looking_box">A cool-looking box</a></li></ol></details></li><li><details><summary>Styling text</summary><ol><li><a href="/en-US/docs/Learn/CSS/Styling_text">CSS styling text</a></li><li><a href="/en-US/docs/Learn/CSS/Styling_text/Fundamentals">Fundamental text and font styling</a></li><li><a href="/en-US/docs/Learn/CSS/Styling_text/Styling_lists">Styling lists</a></li><li><a href="/en-US/docs/Learn/CSS/Styling_text/Styling_links">Styling links</a></li><li><a href="/en-US/docs/Learn/CSS/Styling_text/Web_fonts">Web fonts</a></li><li><a href="/en-US/docs/Learn/CSS/Styling_text/Typesetting_a_homepage">Typesetting a community school homepage</a></li></ol></details></li><li><details><summary>CSS layout</summary><ol><li><a href="/en-US/docs/Learn/CSS/CSS_layout">CSS layout</a></li><li><a href="/en-US/docs/Learn/CSS/CSS_layout/Introduction">Introduction to CSS layout</a></li><li><a href="/en-US/docs/Learn/CSS/CSS_layout/Normal_Flow">Normal Flow</a></li><li><a href="/en-US/docs/Learn/CSS/CSS_layout/Flexbox">Flexbox</a></li><li><a href="/en-US/docs/Learn/CSS/CSS_layout/Grids">Grids</a></li><li><a href="/en-US/docs/Learn/CSS/CSS_layout/Floats">Floats</a></li><li><a href="/en-US/docs/Learn/CSS/CSS_layout/Positioning">Positioning</a></li><li><a href="/en-US/docs/Learn/CSS/CSS_layout/Multiple-column_Layout">Multiple-column layout</a></li><li><a href="/en-US/docs/Learn/CSS/CSS_layout/Responsive_Design">Responsive design</a></li><li><a href="/en-US/docs/Learn/CSS/CSS_layout/Media_queries">Beginner's guide to media queries</a></li><li><a href="/en-US/docs/Learn/CSS/CSS_layout/Legacy_Layout_Methods">Legacy layout methods</a></li><li><a href="/en-US/docs/Learn/CSS/CSS_layout/Supporting_Older_Browsers">Supporting older browsers</a></li><li><a href="/en-US/docs/Learn/CSS/CSS_layout/Fundamental_Layout_Comprehension">Fundamental layout comprehension</a></li></ol></details></li><li class="section"><a href="/en-US/docs/Learn/JavaScript">JavaScript — Dynamic client-side scripting</a></li><li><details><summary>JavaScript first steps</summary><ol><li><a href="/en-US/docs/Learn/JavaScript/First_steps">JavaScript first steps</a></li><li><a href="/en-US/docs/Learn/JavaScript/First_steps/What_is_JavaScript">What is JavaScript?</a></li><li><a href="/en-US/docs/Learn/JavaScript/First_steps/A_first_splash">A first splash into JavaScript</a></li><li><a href="/en-US/docs/Learn/JavaScript/First_steps/What_went_wrong">What went wrong? Troubleshooting JavaScript</a></li><li><a href="/en-US/docs/Learn/JavaScript/First_steps/Variables">Storing the information you need — Variables</a></li><li><a href="/en-US/docs/Learn/JavaScript/First_steps/Math">Basic math in JavaScript — numbers and operators</a></li><li><a href="/en-US/docs/Learn/JavaScript/First_steps/Strings">Handling text — strings in JavaScript</a></li><li><a href="/en-US/docs/Learn/JavaScript/First_steps/Useful_string_methods">Useful string methods</a></li><li><a href="/en-US/docs/Learn/JavaScript/First_steps/Arrays">Arrays</a></li><li><a href="/en-US/docs/Learn/JavaScript/First_steps/Silly_story_generator">Silly story generator</a></li></ol></details></li><li><details><summary>JavaScript building blocks</summary><ol><li><a href="/en-US/docs/Learn/JavaScript/Building_blocks">JavaScript building blocks</a></li><li><a href="/en-US/docs/Learn/JavaScript/Building_blocks/conditionals">Making decisions in your code — conditionals</a></li><li><a href="/en-US/docs/Learn/JavaScript/Building_blocks/Looping_code">Looping code</a></li><li><a href="/en-US/docs/Learn/JavaScript/Building_blocks/Functions">Functions — reusable blocks of code</a></li><li><a href="/en-US/docs/Learn/JavaScript/Building_blocks/Build_your_own_function">Build your own function</a></li><li><a href="/en-US/docs/Learn/JavaScript/Building_blocks/Return_values">Function return values</a></li><li><a href="/en-US/docs/Learn/JavaScript/Building_blocks/Events">Introduction to events</a></li><li><a href="/en-US/docs/Learn/JavaScript/Building_blocks/Event_bubbling">Event bubbling</a></li><li><a href="/en-US/docs/Learn/JavaScript/Building_blocks/Image_gallery">Image gallery</a></li></ol></details></li><li><details><summary>Introducing JavaScript objects</summary><ol><li><a href="/en-US/docs/Learn/JavaScript/Objects">Introducing JavaScript objects</a></li><li><a href="/en-US/docs/Learn/JavaScript/Objects/Basics">JavaScript object basics</a></li><li><a href="/en-US/docs/Learn/JavaScript/Objects/Object_prototypes">Object prototypes</a></li><li><a href="/en-US/docs/Learn/JavaScript/Objects/Object-oriented_programming">Object-oriented programming</a></li><li><a href="/en-US/docs/Learn/JavaScript/Objects/Classes_in_JavaScript">Classes in JavaScript</a></li><li><a href="/en-US/docs/Learn/JavaScript/Objects/JSON">Working with JSON</a></li><li><a href="/en-US/docs/Learn/JavaScript/Objects/Object_building_practice">Object building practice</a></li><li><a href="/en-US/docs/Learn/JavaScript/Objects/Adding_bouncing_balls_features">Adding features to our bouncing balls demo</a></li></ol></details></li><li><details><summary>Asynchronous JavaScript</summary><ol><li><a href="/en-US/docs/Learn/JavaScript/Asynchronous">Asynchronous JavaScript</a></li><li><a href="/en-US/docs/Learn/JavaScript/Asynchronous/Introducing">Introducing asynchronous JavaScript</a></li><li><a href="/en-US/docs/Learn/JavaScript/Asynchronous/Promises">How to use promises</a></li><li><a href="/en-US/docs/Learn/JavaScript/Asynchronous/Implementing_a_promise-based_API">How to implement a promise-based API</a></li><li><a href="/en-US/docs/Learn/JavaScript/Asynchronous/Introducing_workers">Introducing workers</a></li><li><a href="/en-US/docs/Learn/JavaScript/Asynchronous/Sequencing_animations">Sequencing animations</a></li></ol></details></li><li><details><summary>Client-side web APIs</summary><ol><li><a href="/en-US/docs/Learn/JavaScript/Client-side_web_APIs">Client-side web APIs</a></li><li><a href="/en-US/docs/Learn/JavaScript/Client-side_web_APIs/Introduction">Introduction to web APIs</a></li><li><a href="/en-US/docs/Learn/JavaScript/Client-side_web_APIs/Manipulating_documents">Manipulating documents</a></li><li><a href="/en-US/docs/Learn/JavaScript/Client-side_web_APIs/Fetching_data">Fetching data from the server</a></li><li><a href="/en-US/docs/Learn/JavaScript/Client-side_web_APIs/Third_party_APIs">Third-party APIs</a></li><li><a href="/en-US/docs/Learn/JavaScript/Client-side_web_APIs/Drawing_graphics">Drawing graphics</a></li><li><a href="/en-US/docs/Learn/JavaScript/Client-side_web_APIs/Video_and_audio_APIs">Video and Audio APIs</a></li><li><a href="/en-US/docs/Learn/JavaScript/Client-side_web_APIs/Client-side_storage">Client-side storage</a></li></ol></details></li><li class="section"><a href="/en-US/docs/Learn/Forms">Web forms — Working with user data</a></li><li><details><summary>Web form building blocks</summary><ol><li><a href="/en-US/docs/Learn/Forms">Web form building blocks</a></li><li><a href="/en-US/docs/Learn/Forms/Your_first_form">Your first form</a></li><li><a href="/en-US/docs/Learn/Forms/How_to_structure_a_web_form">How to structure a web form</a></li><li><a href="/en-US/docs/Learn/Forms/Basic_native_form_controls">Basic native form controls</a></li><li><a href="/en-US/docs/Learn/Forms/HTML5_input_types">The HTML5 input types</a></li><li><a href="/en-US/docs/Learn/Forms/Other_form_controls">Other form controls</a></li><li><a href="/en-US/docs/Learn/Forms/Styling_web_forms">Styling web forms</a></li><li><a href="/en-US/docs/Learn/Forms/Advanced_form_styling">Advanced form styling</a></li><li><a href="/en-US/docs/Learn/Forms/UI_pseudo-classes">UI pseudo-classes</a></li><li><a href="/en-US/docs/Learn/Forms/Form_validation">Client-side form validation</a></li><li><a href="/en-US/docs/Learn/Forms/Sending_and_retrieving_form_data">Sending form data</a></li></ol></details></li><li><details><summary>Advanced web form techniques</summary><ol><li><a href="/en-US/docs/Learn/Forms/How_to_build_custom_form_controls">How to build custom form controls</a></li><li><a href="/en-US/docs/Learn/Forms/Sending_forms_through_JavaScript">Sending forms through JavaScript</a></li><li><a href="/en-US/docs/Learn/Forms/Property_compatibility_table_for_form_controls">CSS property compatibility table for form controls</a></li><li><a href="/en-US/docs/Learn/Forms/HTML_forms_in_legacy_browsers">HTML forms in legacy browsers</a></li></ol></details></li><li class="section"><a href="/en-US/docs/Learn/Accessibility">Accessibility — Make the web usable by everyone</a></li><li><details><summary>Accessibility guides</summary><ol><li><a href="/en-US/docs/Learn/Accessibility">Accessibility</a></li><li><a href="/en-US/docs/Learn/Accessibility/What_is_accessibility">What is accessibility?</a></li><li><a href="/en-US/docs/Learn/Accessibility/HTML">HTML: A good basis for accessibility</a></li><li><a href="/en-US/docs/Learn/Accessibility/CSS_and_JavaScript">CSS and JavaScript accessibility best practices</a></li><li><a href="/en-US/docs/Learn/Accessibility/WAI-ARIA_basics">WAI-ARIA basics</a></li><li><a href="/en-US/docs/Learn/Accessibility/Multimedia">Accessible multimedia</a></li><li><a href="/en-US/docs/Learn/Accessibility/Mobile">Mobile accessibility</a></li><li><a href="/en-US/docs/Learn/Accessibility/Accessibility_troubleshooting">Assessment: Accessibility troubleshooting</a></li></ol></details></li><li class="section"><a href="/en-US/docs/Learn/Performance">Performance — Making websites fast and responsive</a></li><li><details><summary>Performance guides</summary><ol><li><a href="/en-US/docs/Learn/Performance">Web performance</a></li><li><a href="/en-US/docs/Learn/Performance/why_web_performance">The "why" of web performance</a></li><li><a href="/en-US/docs/Learn/Performance/What_is_web_performance">What is web performance?</a></li><li><a href="/en-US/docs/Learn/Performance/Perceived_performance">Perceived performance</a></li><li><a href="/en-US/docs/Learn/Performance/Measuring_performance">Measuring performance</a></li><li><a href="/en-US/docs/Learn/Performance/Multimedia">Multimedia: Images</a></li><li><a href="/en-US/docs/Learn/Performance/video">Multimedia: video</a></li><li><a href="/en-US/docs/Learn/Performance/JavaScript">JavaScript performance optimization</a></li><li><a href="/en-US/docs/Learn/Performance/HTML">HTML performance optimization</a></li><li><a href="/en-US/docs/Learn/Performance/CSS">CSS performance optimization</a></li><li><a href="/en-US/docs/Learn/Performance/business_case_for_performance">The business case for web performance</a></li></ol></details></li><li class="section"><a href="/en-US/docs/Learn/MathML">MathML — Writing mathematics with MathML</a></li><li><details><summary>MathML first steps</summary><ol><li><a href="/en-US/docs/Learn/MathML/First_steps">MathML first steps</a></li><li><a href="/en-US/docs/Learn/MathML/First_steps/Getting_started">Getting started with MathML</a></li><li><a href="/en-US/docs/Learn/MathML/First_steps/Text_containers">MathML Text Containers</a></li><li><a href="/en-US/docs/Learn/MathML/First_steps/Fractions_and_roots">MathML fractions and roots</a></li><li><a href="/en-US/docs/Learn/MathML/First_steps/Scripts">MathML scripted elements</a></li><li><a href="/en-US/docs/Learn/MathML/First_steps/Tables">MathML tables</a></li><li><a href="/en-US/docs/Learn/MathML/First_steps/Three_famous_mathematical_formulas">Three famous mathematical formulas</a></li></ol></details></li><li class="section"><a href="/en-US/docs/Learn/../Games">Games — Developing games for the web</a></li><li><details><summary>Guides and tutorials</summary><ol><li><a href="/en-US/docs/Games/Introduction">Introduction to game development for the Web</a></li><li><a href="/en-US/docs/Games/Techniques">Techniques for game development</a></li><li><a href="/en-US/docs/Games/Tutorials">Tutorials</a></li><li><a href="/en-US/docs/Games/Publishing_games">Publishing games</a></li></ol></details></li><li class="section"><a href="/en-US/docs/Learn/Tools_and_testing">Tools and testing</a></li><li><details><summary>Client-side web development tools</summary><ol><li><a href="/en-US/docs/Learn/Tools_and_testing/Understanding_client-side_tools">Understanding client-side web development tools</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Understanding_client-side_tools/Overview">Client-side tooling overview</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Understanding_client-side_tools/Command_line">Command line crash course</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Understanding_client-side_tools/Package_management">Package management basics</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Understanding_client-side_tools/Introducing_complete_toolchain">Introducing a complete toolchain</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Understanding_client-side_tools/Deployment">Deploying our app</a></li></ol></details></li><li><details><summary>Introduction to client-side frameworks</summary><ol><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Introduction">Introduction to client-side frameworks</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Main_features">Framework main features</a></li></ol></details></li><li><details><summary>React</summary><ol><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/React_getting_started">Getting started with React</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/React_todo_list_beginning">Beginning our React todo list</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/React_components">Componentizing our React app</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/React_interactivity_events_state">React interactivity: Events and state</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/React_interactivity_filtering_conditional_rendering">React interactivity: Editing, filtering, conditional rendering</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/React_accessibility">Accessibility in React</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/React_resources">React resources</a></li></ol></details></li><li><details><summary>Ember</summary><ol><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Ember_getting_started">Getting started with Ember</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Ember_structure_componentization">Ember app structure and componentization</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Ember_interactivity_events_state">Ember interactivity: Events, classes and state</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Ember_conditional_footer">Ember Interactivity: Footer functionality, conditional rendering</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Ember_routing">Routing in Ember</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Ember_resources">Ember resources and troubleshooting</a></li></ol></details></li><li><details><summary>Vue</summary><ol><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Vue_getting_started">Getting started with Vue</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Vue_first_component">Creating our first Vue component</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Vue_rendering_lists">Rendering a list of Vue components</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Vue_methods_events_models">Adding a new todo form: Vue events, methods, and models</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Vue_styling">Styling Vue components with CSS</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Vue_computed_properties">Using Vue computed properties</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Vue_conditional_rendering">Vue conditional rendering: editing existing todos</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Vue_refs_focus_management">Vue refs and lifecycle methods for focus management</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Vue_resources">Vue resources</a></li></ol></details></li><li><details><summary>Svelte</summary><ol><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Svelte_getting_started">Getting started with Svelte</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Svelte_Todo_list_beginning">Starting our Svelte to-do list app</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Svelte_variables_props">Dynamic behavior in Svelte: working with variables and props</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Svelte_components">Componentizing our Svelte app</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Svelte_reactivity_lifecycle_accessibility">Advanced Svelte: Reactivity, lifecycle, accessibility</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Svelte_stores">Working with Svelte stores</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Svelte_TypeScript">TypeScript support in Svelte</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Svelte_deployment_next">Deployment and next steps</a></li></ol></details></li><li><details><summary>Angular</summary><ol><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Angular_getting_started">Getting started with Angular</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Angular_todo_list_beginning">Beginning our Angular todo list app</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Angular_styling">Styling our Angular app</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Angular_item_component">Creating an item component</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Angular_filtering">Filtering our to-do items</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Angular_building">Building Angular applications and further resources</a></li></ol></details></li><li><details><summary>Git and GitHub</summary><ol><li><a href="/en-US/docs/Learn/Tools_and_testing/GitHub">Git and GitHub</a></li></ol></details></li><li><details><summary>Cross browser testing</summary><ol><li><a href="/en-US/docs/Learn/Tools_and_testing/Cross_browser_testing">Cross browser testing</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Cross_browser_testing/Introduction">Introduction to cross-browser testing</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Cross_browser_testing/Testing_strategies">Strategies for carrying out testing</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Cross_browser_testing/HTML_and_CSS">Handling common HTML and CSS problems</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Cross_browser_testing/JavaScript">Handling common JavaScript problems</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Cross_browser_testing/Accessibility">Handling common accessibility problems</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Cross_browser_testing/Feature_detection">Implementing feature detection</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Cross_browser_testing/Automated_testing">Introduction to automated testing</a></li><li><a href="/en-US/docs/Learn/Tools_and_testing/Cross_browser_testing/Your_own_automation_environment">Setting up your own test automation environment</a></li></ol></details></li><li class="section"><a href="/en-US/docs/Learn/Server-side">Server-side website programming</a></li><li><details><summary>First steps</summary><ol><li><a href="/en-US/docs/Learn/Server-side/First_steps">Server-side website programming first steps</a></li><li><a href="/en-US/docs/Learn/Server-side/First_steps/Introduction">Introduction to the server side</a></li><li><a href="/en-US/docs/Learn/Server-side/First_steps/Client-Server_overview">Client-Server Overview</a></li><li><a href="/en-US/docs/Learn/Server-side/First_steps/Web_frameworks">Server-side web frameworks</a></li><li><a href="/en-US/docs/Learn/Server-side/First_steps/Website_security">Website security</a></li></ol></details></li><li><details><summary>Django web framework (Python)</summary><ol><li><a href="/en-US/docs/Learn/Server-side/Django">Django Web Framework (Python)</a></li><li><a href="/en-US/docs/Learn/Server-side/Django/Introduction">Django introduction</a></li><li><a href="/en-US/docs/Learn/Server-side/Django/development_environment">Setting up a Django development environment</a></li><li><a href="/en-US/docs/Learn/Server-side/Django/Tutorial_local_library_website">Django Tutorial: The Local Library website</a></li><li><a href="/en-US/docs/Learn/Server-side/Django/skeleton_website">Django Tutorial Part 2: Creating a skeleton website</a></li><li><a href="/en-US/docs/Learn/Server-side/Django/Models">Django Tutorial Part 3: Using models</a></li><li><a href="/en-US/docs/Learn/Server-side/Django/Admin_site">Django Tutorial Part 4: Django admin site</a></li><li><a href="/en-US/docs/Learn/Server-side/Django/Home_page">Django Tutorial Part 5: Creating our home page</a></li><li><a href="/en-US/docs/Learn/Server-side/Django/Generic_views">Django Tutorial Part 6: Generic list and detail views</a></li><li><a href="/en-US/docs/Learn/Server-side/Django/Sessions">Django Tutorial Part 7: Sessions framework</a></li><li><a href="/en-US/docs/Learn/Server-side/Django/Authentication">Django Tutorial Part 8: User authentication and permissions</a></li><li><a href="/en-US/docs/Learn/Server-side/Django/Forms">Django Tutorial Part 9: Working with forms</a></li><li><a href="/en-US/docs/Learn/Server-side/Django/Testing">Django Tutorial Part 10: Testing a Django web application</a></li><li><a href="/en-US/docs/Learn/Server-side/Django/Deployment">Django Tutorial Part 11: Deploying Django to production</a></li><li><a href="/en-US/docs/Learn/Server-side/Django/web_application_security">Django web application security</a></li><li><a href="/en-US/docs/Learn/Server-side/Django/django_assessment_blog">Assessment: DIY Django mini blog</a></li></ol></details></li><li><details><summary>Express Web Framework (Node.js/JavaScript)</summary><ol><li><a href="/en-US/docs/Learn/Server-side/Express_Nodejs">Express web framework (Node.js/JavaScript)</a></li><li><a href="/en-US/docs/Learn/Server-side/Express_Nodejs/Introduction">Express/Node introduction</a></li><li><a href="/en-US/docs/Learn/Server-side/Express_Nodejs/development_environment">Setting up a Node development environment</a></li><li><a href="/en-US/docs/Learn/Server-side/Express_Nodejs/Tutorial_local_library_website">Express Tutorial: The Local Library website</a></li><li><a href="/en-US/docs/Learn/Server-side/Express_Nodejs/skeleton_website">Express Tutorial Part 2: Creating a skeleton website</a></li><li><a href="/en-US/docs/Learn/Server-side/Express_Nodejs/mongoose">Express Tutorial Part 3: Using a Database (with Mongoose)</a></li><li><a href="/en-US/docs/Learn/Server-side/Express_Nodejs/routes">Express Tutorial Part 4: Routes and controllers</a></li><li><a href="/en-US/docs/Learn/Server-side/Express_Nodejs/Displaying_data">Express Tutorial Part 5: Displaying library data</a></li><li><a href="/en-US/docs/Learn/Server-side/Express_Nodejs/forms">Express Tutorial Part 6: Working with forms</a></li><li><a href="/en-US/docs/Learn/Server-side/Express_Nodejs/deployment">Express Tutorial Part 7: Deploying to production</a></li></ol></details></li><li class="section"><a href="/en-US/docs/Learn/Common_questions">Further resources</a></li><li><details><summary>Common questions</summary><ol><li><a href="/en-US/docs/Learn/Common_questions">Common questions</a></li><li><a href="/en-US/docs/Learn/HTML/Howto">Use HTML to solve common problems</a></li><li><a href="/en-US/docs/Learn/CSS/Howto">Use CSS to solve common problems</a></li><li><a href="/en-US/docs/Learn/JavaScript/Howto">Solve common problems in your JavaScript code</a></li><li><a href="/en-US/docs/Learn/Common_questions/Web_mechanics">Web mechanics</a></li><li><a href="/en-US/docs/Learn/Common_questions/Tools_and_setup">Tools and setup</a></li><li><a href="/en-US/docs/Learn/Common_questions/Design_and_accessibility">Design and accessibility</a></li></ol></details></li></ol></div></div><section class="place side"></section></nav></aside><div class="toc-container"><aside class="toc"><nav><div class="document-toc-container"><section class="document-toc"><header><h2 class="document-toc-heading">In this article</h2></header><ul class="document-toc-list"><li class="document-toc-item "><a class="document-toc-link" href="#a_short_history_of_embedding">A short history of embedding</a></li><li class="document-toc-item "><a class="document-toc-link" href="#active_learning_classic_embedding_uses">Active learning: classic embedding uses</a></li><li class="document-toc-item "><a class="document-toc-link" href="#iframes_in_detail">iframes in detail</a></li><li class="document-toc-item "><a class="document-toc-link" href="#the_embed_and_object_elements">The <embed> and <object> elements</a></li><li class="document-toc-item "><a class="document-toc-link" href="#test_your_skills!">Test your skills!</a></li><li class="document-toc-item "><a class="document-toc-link" href="#summary">Summary</a></li></ul></section></div></nav></aside><section class="place side"></section></div></div><main id="content" class="main-content "><article class="main-page-content" lang="en-US"><header><h1>From object to iframe — other embedding technologies</h1></header><div class="section-content"><ul class="prev-next"> <li><a class="button secondary" href="/en-US/docs/Learn/HTML/Multimedia_and_embedding/Video_and_audio_content"><span class="button-wrap"> Previous </span></a></li> <li><a class="button secondary" href="/en-US/docs/Learn/HTML/Multimedia_and_embedding"><span class="button-wrap"> Overview: Multimedia and embedding</span></a></li> <li><a class="button secondary" href="/en-US/docs/Learn/HTML/Multimedia_and_embedding/Adding_vector_graphics_to_the_Web"><span class="button-wrap"> Next </span></a></li> </ul> <p>By now you should really be getting the hang of embedding things into your web pages, including images, video and audio. At this point we'd like to take somewhat of a sideways step, looking at some elements that allow you to embed a wide variety of content types into your webpages: the <a href="/en-US/docs/Web/HTML/Element/iframe"><code><iframe></code></a>, <a href="/en-US/docs/Web/HTML/Element/embed"><code><embed></code></a> and <a href="/en-US/docs/Web/HTML/Element/object"><code><object></code></a> elements. <code><iframe></code>s are for embedding other web pages, and the other two allow you to embed external resources such as PDF files.</p> <figure class="table-container"><table> <tbody> <tr> <th scope="row">Prerequisites:</th> <td> <a href="/en-US/docs/Learn/Getting_started_with_the_web/Installing_basic_software">Basic software installed</a>, basic knowledge of <a href="/en-US/docs/Learn/Getting_started_with_the_web/Dealing_with_files">working with files</a>, familiarity with HTML fundamentals (as covered in <a href="/en-US/docs/Learn/HTML/Introduction_to_HTML/Getting_started">Getting started with HTML</a>) and the previous articles in this module. </td> </tr> <tr> <th scope="row">Objective:</th> <td> To learn how to embed items into web pages using <a href="/en-US/docs/Web/HTML/Element/object"><code><object></code></a>, <a href="/en-US/docs/Web/HTML/Element/embed"><code><embed></code></a>, and <a href="/en-US/docs/Web/HTML/Element/iframe"><code><iframe></code></a>, like PDF documents and other webpages. </td> </tr> </tbody> </table></figure></div><section aria-labelledby="a_short_history_of_embedding"><h2 id="a_short_history_of_embedding"><a href="#a_short_history_of_embedding">A short history of embedding</a></h2><div class="section-content"><p>A long time ago on the Web, it was popular to use <strong>frames</strong> to create websites — small parts of a website stored in individual HTML pages. These were embedded in a master document called a <strong>frameset</strong>, which allowed you to specify the area on the screen that each frame filled, rather like sizing the columns and rows of a table. These were considered the height of coolness in the mid to late 90s, and there was evidence that having a webpage split up into smaller chunks like this was better for download speeds — especially noticeable with network connections being so slow back then. They did however have many problems, which far outweighed any positives as network speeds got faster, so you don't see them being used anymore.</p> <p>A little while later (late 90s, early 2000s), plugin technologies became very popular, such as <a href="/en-US/docs/Glossary/Java">Java Applets</a> and <a href="/en-US/docs/Glossary/Adobe_Flash">Flash</a> — these allowed web developers to embed rich content into webpages such as videos and animations, which just weren't available through HTML alone. Embedding these technologies was achieved through elements like <a href="/en-US/docs/Web/HTML/Element/object"><code><object></code></a>, and the lesser-used <a href="/en-US/docs/Web/HTML/Element/embed"><code><embed></code></a>, and they were very useful at the time. They have since fallen out of fashion due to many problems, including accessibility, security, file size, and more. These days major browsers have stopped supporting plugins such as Flash.</p> <p>Finally, the <a href="/en-US/docs/Web/HTML/Element/iframe"><code><iframe></code></a> element appeared (along with other ways of embedding content, such as <a href="/en-US/docs/Web/HTML/Element/canvas"><code><canvas></code></a>, <a href="/en-US/docs/Web/HTML/Element/video"><code><video></code></a>, etc.) This provides a way to embed an entire web document inside another one, as if it were an <a href="/en-US/docs/Web/HTML/Element/img"><code><img></code></a> or other such element, and is used regularly today.</p> <p>With the history lesson out of the way, let's move on and see how to use some of these.</p></div></section><section aria-labelledby="active_learning_classic_embedding_uses"><h2 id="active_learning_classic_embedding_uses"><a href="#active_learning_classic_embedding_uses">Active learning: classic embedding uses</a></h2><div class="section-content"><p>In this article we are going to jump straight into an active learning section, to immediately give you a real idea of just what embedding technologies are useful for. The online world is very familiar with <a href="https://www.youtube.com/" class="external" target="_blank">YouTube</a>, but many people don't know about some of the sharing facilities it has available. Let's look at how YouTube allows us to embed a video in any page we like using an <a href="/en-US/docs/Web/HTML/Element/iframe"><code><iframe></code></a>.</p> <ol> <li>First, go to YouTube and find a video you like.</li> <li>Below the video, you'll find a <em>Share</em> button — select this to display the sharing options.</li> <li>Select the <em>Embed</em> button and you'll be given some <code><iframe></code> code — copy this.</li> <li>Insert it into the <em>Input</em> box below, and see what the result is in the <em>Output</em>.</li> </ol> <p>For bonus points, you could also try embedding a <a href="https://www.google.com/maps/" class="external" target="_blank">Google Map</a> in the example:</p> <ol> <li>Go to Google Maps and find a map you like.</li> <li>Click on the "Hamburger Menu" (three horizontal lines) in the top left of the UI.</li> <li>Select the <em>Share or embed map</em> option.</li> <li>Select the Embed map option, which will give you some <code><iframe></code> code — copy this.</li> <li>Insert it into the <em>Input</em> box below, and see what the result is in the <em>Output</em>.</li> </ol> <p>If you make a mistake, you can always reset it using the <em>Reset</em> button. If you get really stuck, press the <em>Show solution</em> button to see an answer.</p> <div class="code-example"><pre class="brush: html hidden notranslate"><code><h2>Live output</h2> <div class="output" style="min-height: 250px;"></div> <h2>Editable code</h2> <p class="a11y-label"> Press Esc to move focus away from the code area (Tab inserts a tab character). </p> <textarea id="code" class="input" style="width: 95%;min-height: 100px;"></textarea> <div class="playable-buttons"> <input id="reset" type="button" value="Reset" /> <input id="solution" type="button" value="Show solution" /> </div> </code></pre></div> <div class="code-example"><pre class="brush: css hidden notranslate"><code>html { font-family: sans-serif; } h2 { font-size: 16px; } .a11y-label { margin: 0; text-align: right; font-size: 0.7rem; width: 98%; } body { margin: 10px; background: #f5f9fa; } </code></pre></div> <div class="code-example"><pre class="brush: js hidden notranslate"><code>const textarea = document.getElementById("code"); const reset = document.getElementById("reset"); const solution = document.getElementById("solution"); const output = document.querySelector(".output"); let code = textarea.value; let userEntry = textarea.value; function updateCode() { output.innerHTML = textarea.value; } reset.addEventListener("click", function () { textarea.value = code; userEntry = textarea.value; solutionEntry = htmlSolution; solution.value = "Show solution"; updateCode(); }); solution.addEventListener("click", function () { if (solution.value === "Show solution") { textarea.value = solutionEntry; solution.value = "Hide solution"; } else { textarea.value = userEntry; solution.value = "Show solution"; } updateCode(); }); const htmlSolution = '<iframe width="420" height="315" src="https://www.youtube.com/embed/QH2-TGUlwu4" frameborder="0" allowfullscreen>\n</iframe>\n\n<iframe src="https://www.google.com/maps/embed?pb=!1m18!1m12!1m3!1d37995.65748333395!2d-2.273568166412784!3d53.473310471916975!2m3!1f0!2f0!3f0!3m2!1i1024!2i768!4f13.1!3m3!1m2!1s0x487bae6c05743d3d%3A0xf82fddd1e49fc0a1!2sThe+Lowry!5e0!3m2!1sen!2suk!4v1518171785211" width="600" height="450" frameborder="0" style="border:0" allowfullscreen>\n</iframe>'; let solutionEntry = htmlSolution; textarea.addEventListener("input", updateCode); window.addEventListener("load", updateCode); // stop tab key tabbing out of textarea and // make it write a tab at the caret position instead textarea.onkeydown = function (e) { if (e.code === "Tab") { e.preventDefault(); insertAtCaret("\t"); } if (e.code === "Escape") { textarea.blur(); } }; function insertAtCaret(text) { const scrollPos = textarea.scrollTop; let caretPos = textarea.selectionStart; const front = textarea.value.substring(0, caretPos); const back = textarea.value.substring( textarea.selectionEnd, textarea.value.length, ); textarea.value = front + text + back; caretPos += text.length; textarea.selectionStart = caretPos; textarea.selectionEnd = caretPos; textarea.focus(); textarea.scrollTop = scrollPos; } // Update the saved userCode every time the user updates the text area code textarea.onkeyup = function () { // We only want to save the state when the user code is being shown, // not the solution, so that solution is not saved over the user code if (solution.value === "Show solution") { userEntry = textarea.value; } else { solutionEntry = textarea.value; } updateCode(); }; </code></pre></div><div class="code-example"><div class="example-header"></div><iframe class="sample-code-frame" title="Active learning classic embedding uses sample" id="frame_active_learning_classic_embedding_uses" width="700" height="600" src="about:blank" data-live-path="/en-US/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies" data-live-id="active_learning_classic_embedding_uses" sandbox="allow-same-origin allow-scripts" loading="lazy"></iframe></div></div></section><section aria-labelledby="iframes_in_detail"><h2 id="iframes_in_detail"><a href="#iframes_in_detail">iframes in detail</a></h2><div class="section-content"><p>So, that was easy and fun, right? <a href="/en-US/docs/Web/HTML/Element/iframe"><code><iframe></code></a> elements are designed to allow you to embed other web documents into the current document. This is great for incorporating third-party content into your website that you might not have direct control over and don't want to have to implement your own version of — such as video from online video providers, commenting systems like <a href="https://disqus.com/" class="external" target="_blank">Disqus</a>, maps from online map providers, advertising banners, etc. Even the live editable examples you've been using through this course are implemented using <code><iframe></code>s.</p> <p> Before diving into using <code><iframe></code> elements, there are some security concerns to be aware of. Say you wanted to include the MDN glossary on one of your web pages using the <a href="/en-US/docs/Web/HTML/Element/iframe"><code><iframe></code></a> element, you might try something like the next code example. If you were to add the code below into one of your pages, you might be surprised to see an error message instead of the glossary page: </p> <div class="code-example"><div class="example-header"><span class="language-name">html</span></div><pre class="brush: html notranslate"><code><head> <style> iframe { border: none; } </style> </head> <body> <iframe src="https://developer.mozilla.org/en-US/docs/Glossary" width="100%" height="500" allowfullscreen sandbox> <p> <a href="/en-US/docs/Glossary"> Fallback link for browsers that don't support iframes </a> </p> </iframe> </body> </code></pre></div> <p>If you have a look at your browser's console, you'll see an error message like the following:</p> <pre class="brush: plain notranslate">Refused to display 'https://developer.mozilla.org/' in a frame because it set 'X-Frame-Options' to 'deny'. </pre> <p>The <a href="#security_concerns">Security</a> section below goes into more detail about why you see this error, but first, let's have a look at what our code is doing.</p> <p>The example includes the bare essentials needed to use an <code><iframe></code>:</p> <dl> <dt id="border_none"><a href="/en-US/docs/Web/CSS/border"><code>border: none</code></a></dt> <dd> <p>If used, the <code><iframe></code> is displayed without a surrounding border. Otherwise, by default, browsers display the <code><iframe></code> with a surrounding border (which is generally undesirable).</p> </dd> <dt id="allowfullscreen"><a href="/en-US/docs/Web/HTML/Element/iframe#allowfullscreen"><code>allowfullscreen</code></a></dt> <dd> <p>If set, the <code><iframe></code> is able to be placed in fullscreen mode using the <a href="/en-US/docs/Web/API/Fullscreen_API">Fullscreen API</a> (somewhat beyond the scope of this article).</p> </dd> <dt id="src"><a href="/en-US/docs/Web/HTML/Element/iframe#src"><code>src</code></a></dt> <dd> <p>This attribute, as with <a href="/en-US/docs/Web/HTML/Element/video"><code><video></code></a>/<a href="/en-US/docs/Web/HTML/Element/img"><code><img></code></a>, contains a path pointing to the URL of the document to be embedded.</p> </dd> <dt id="width"><a href="/en-US/docs/Web/HTML/Element/iframe#width"><code>width</code></a> and <a href="/en-US/docs/Web/HTML/Element/iframe#height"><code>height</code></a></dt> <dd> <p>These attributes specify the width and height you want the iframe to be.</p> </dd> <dt id="sandbox"><a href="/en-US/docs/Web/HTML/Element/iframe#sandbox"><code>sandbox</code></a></dt> <dd> <p>This attribute, which works in slightly more modern browsers than the rest of the <code><iframe></code> features (e.g. IE 10 and above) requests heightened security settings; we'll say more about this in the next section.</p> </dd> </dl> <div class="notecard note"> <p><strong>Note:</strong> In order to improve speed, it's a good idea to set the iframe's <code>src</code> attribute with JavaScript after the main content is done with loading. This makes your page usable sooner and decreases your official page load time (an important <a href="/en-US/docs/Glossary/SEO">SEO</a> metric.)</p> </div></div></section><section aria-labelledby="security_concerns"><h3 id="security_concerns"><a href="#security_concerns">Security concerns</a></h3><div class="section-content"><p>Above we mentioned security concerns — let's go into this in a bit more detail now. We are not expecting you to understand all of this content perfectly the first time; we just want to make you aware of this concern, and provide a reference to come back to as you get more experienced and start considering using <code><iframe></code>s in your experiments and work. Also, there is no need to be scared and not use <code><iframe></code>s — you just need to be careful. Read on…</p> <p>Browser makers and Web developers have learned the hard way that iframes are a common target (official term: <strong>attack vector</strong>) for bad people on the Web (often termed <strong>hackers</strong>, or more accurately, <strong>crackers</strong>) to attack if they are trying to maliciously modify your webpage, or trick people into doing something they don't want to do, such as reveal sensitive information like usernames and passwords. Because of this, spec engineers and browser developers have developed various security mechanisms for making <code><iframe></code>s more secure, and there are also best practices to consider — we'll cover some of these below.</p> <div class="notecard note"> <p><strong>Note:</strong> <a href="/en-US/docs/Glossary/Clickjacking">Clickjacking</a> is one kind of common iframe attack where hackers embed an invisible iframe into your document (or embed your document into their own malicious website) and use it to capture users' interactions. This is a common way to mislead users or steal sensitive data.</p> </div> <p>A quick example first though — try loading the previous example we showed above into your browser — you can <a href="https://mdn.github.io/learning-area/html/multimedia-and-embedding/other-embedding-technologies/iframe-detail.html" class="external" target="_blank">find it live on GitHub</a> (<a href="https://github.com/mdn/learning-area/blob/main/html/multimedia-and-embedding/other-embedding-technologies/iframe-detail.html" class="external" target="_blank">see the source code</a> too.) Instead of the page you expected, you'll probably see some kind of message to the effect of "I can't open this page", and if you look at the <em>Console</em> in the <a href="/en-US/docs/Learn/Common_questions/Tools_and_setup/What_are_browser_developer_tools">browser developer tools</a>, you'll see a message telling you why. In Firefox, you'll get told something like <em>The loading of "<a href="/en-US/docs/Glossary">https://developer.mozilla.org/en-US/docs/Glossary</a>" in a frame is denied by "X-Frame-Options" directive set to "DENY"</em>. This is because the developers that built MDN have included a setting on the server that serves the website pages to disallow them from being embedded inside <code><iframe></code>s (see <a href="#configure_csp_directives">Configure CSP directives</a>, below.) This makes sense — an entire MDN page doesn't really make sense to be embedded in other pages unless you want to do something like embed them on your site and claim them as your own — or attempt to steal data via <a href="/en-US/docs/Glossary/Clickjacking">clickjacking</a>, which are both really bad things to do. Plus if everybody started to do this, all the additional bandwidth would start to cost Mozilla a lot of money.</p> <h4 id="only_embed_when_necessary">Only embed when necessary</h4> <p>Sometimes it makes sense to embed third-party content — like youtube videos and maps — but you can save yourself a lot of headaches if you only embed third-party content when completely necessary. A good rule for web security is <em>"You can never be too cautious. If you made it, double-check it anyway. If someone else made it, assume it's dangerous until proven otherwise."</em></p> <p>Besides security, you should also be aware of intellectual property issues. Most content is copyrighted, offline and online, even content you might not expect (for example, most images on <a href="https://commons.wikimedia.org/wiki/Main_Page" class="external" target="_blank">Wikimedia Commons</a>). Never display content on your webpage unless you own it or the owners have given you written, unequivocal permission. Penalties for copyright infringement are severe. Again, you can never be too cautious.</p> <p>If the content is licensed, you must obey the license terms. For example, the content on MDN is <a href="/en-US/docs/MDN/Writing_guidelines/Attrib_copyright_license#documentation">licensed under CC-BY-SA</a>. That means, you must <a href="https://wiki.creativecommons.org/wiki/Best_practices_for_attribution" class="external" target="_blank">credit us properly</a> when you quote our content, even if you make substantial changes.</p> <h4 id="use_https">Use HTTPS</h4> <p><a href="/en-US/docs/Glossary/HTTPS">HTTPS</a> is the encrypted version of <a href="/en-US/docs/Glossary/HTTP">HTTP</a>. You should serve your websites using HTTPS whenever possible:</p> <ol> <li>HTTPS reduces the chance that remote content has been tampered with in transit.</li> <li>HTTPS prevents embedded content from accessing content in your parent document, and vice versa.</li> </ol> <p>HTTPS-enabling your site requires a special security certificate to be installed. Many hosting providers offer HTTPS-enabled hosting without you needing to do any setup on your own to put a certificate in place. But if you <em>do</em> need to set up HTTPS support for your site on your own, <a href="https://letsencrypt.org/" class="external" target="_blank">Let's Encrypt</a> provides tools and instructions you can use for automatically creating and installing the necessary certificate — with built-in support for the most widely-used web servers, including the Apache web server, Nginx, and others. The Let's Encrypt tooling is designed to make the process as easy as possible, so there's really no good reason to avoid using it or other available means to HTTPS-enable your site.</p> <div class="notecard note"> <p> <strong>Note:</strong> <a href="/en-US/docs/Learn/Common_questions/Tools_and_setup/Using_GitHub_pages">GitHub pages</a> allow content to be served via HTTPS by default. If you are using a different hosting provider you should check what support they provide for serving content with HTTPS. </p> </div> <h4 id="always_use_the_sandbox_attribute">Always use the <code>sandbox</code> attribute</h4> <p>You want to give attackers as little power as you can to do bad things on your website, therefore you should give embedded content <em>only the permissions needed for doing its job.</em> Of course, this applies to your own content, too. A container for code where it can be used appropriately — or for testing — but can't cause any harm to the rest of the codebase (either accidental or malicious) is called a <a href="https://en.wikipedia.org/wiki/Sandbox_(computer_security)" class="external" target="_blank">sandbox</a>.</p> <p>Content that's not sandboxed may be able to execute JavaScript, submit forms, trigger popup windows, etc. By default, you should impose all available restrictions by using the <code>sandbox</code> attribute with no parameters, as shown in our previous example.</p> <p>If absolutely required, you can add permissions back one by one (inside the <code>sandbox=""</code> attribute value) — see the <a href="/en-US/docs/Web/HTML/Element/iframe#sandbox"><code>sandbox</code></a> reference entry for all the available options. One important note is that you should <em>never</em> add both <code>allow-scripts</code> and <code>allow-same-origin</code> to your <code>sandbox</code> attribute — in that case, the embedded content could bypass the <a href="/en-US/docs/Glossary/Same-origin_policy">Same-origin policy</a> that stops sites from executing scripts, and use JavaScript to turn off sandboxing altogether.</p> <div class="notecard note"> <p><strong>Note:</strong> Sandboxing provides no protection if attackers can fool people into visiting malicious content directly (outside an <code>iframe</code>). If there's any chance that certain content may be malicious (e.g., user-generated content), please serve it from a different <a href="/en-US/docs/Glossary/Domain">domain</a> to your main site.</p> </div> <h4 id="configure_csp_directives">Configure CSP directives</h4> <p><a href="/en-US/docs/Glossary/CSP">CSP</a> stands for <strong><a href="/en-US/docs/Web/HTTP/CSP">content security policy</a></strong> and provides <a href="/en-US/docs/Web/HTTP/Headers/Content-Security-Policy">a set of HTTP Headers</a> (metadata sent along with your web pages when they are served from a web server) designed to improve the security of your HTML document. When it comes to securing <code><iframe></code>s, you can <em><a href="/en-US/docs/Web/HTTP/Headers/X-Frame-Options">configure your server to send an appropriate <code>X-Frame-Options</code> header.</a></em> This can prevent other websites from embedding your content in their web pages (which would enable <a href="/en-US/docs/Glossary/Clickjacking">clickjacking</a> and a host of other attacks), which is exactly what the MDN developers have done, as we saw earlier on.</p> <div class="notecard note"> <p><strong>Note:</strong> You can read Frederik Braun's post <a href="https://blog.mozilla.org/security/2013/12/12/on-the-x-frame-options-security-header/" class="external" target="_blank">On the X-Frame-Options Security Header</a> for more background information on this topic. Obviously, it's rather out of scope for a full explanation in this article.</p> </div></div></section><section aria-labelledby="the_embed_and_object_elements"><h2 id="the_embed_and_object_elements"><a href="#the_embed_and_object_elements">The <embed> and <object> elements</a></h2><div class="section-content"><p>The <a href="/en-US/docs/Web/HTML/Element/embed"><code><embed></code></a> and <a href="/en-US/docs/Web/HTML/Element/object"><code><object></code></a> elements serve a different function to <a href="/en-US/docs/Web/HTML/Element/iframe"><code><iframe></code></a> — these elements are general purpose embedding tools for embedding external content, such as PDFs.</p> <p>However, you are unlikely to use these elements very much. If you need to display PDFs, it's usually better to link to them, rather than embedding them in the page.</p> <p>Historically these elements have also been used for embedding content handled by browser <a href="/en-US/docs/Glossary/Plugin">plugins</a> such as <a href="/en-US/docs/Glossary/Adobe_Flash">Adobe Flash</a>, but this technology is now obsolete and is not supported by modern browsers.</p> <p>If you find yourself needing to embed plugin content, this is the kind of information you'll need, at a minimum:</p> <figure class="table-container"><table class="standard-table no-markdown"> <thead> <tr> <th scope="col"></th> <th scope="col"><a href="/en-US/docs/Web/HTML/Element/embed"><code><embed></code></a></th> <th scope="col"><a href="/en-US/docs/Web/HTML/Element/object"><code><object></code></a></th> </tr> </thead> <tbody> <tr> <td><a href="/en-US/docs/Glossary/URL">URL</a> of the embedded content</td> <td><a href="/en-US/docs/Web/HTML/Element/embed#src"><code>src</code></a></td> <td><a href="/en-US/docs/Web/HTML/Element/object#data"><code>data</code></a></td> </tr> <tr> <td> <em>Accurate </em><a href="/en-US/docs/Glossary/MIME_type">media type</a> of the embedded content </td> <td><a href="/en-US/docs/Web/HTML/Element/embed#type"><code>type</code></a></td> <td><a href="/en-US/docs/Web/HTML/Element/object#type"><code>type</code></a></td> </tr> <tr> <td>Height and width (in CSS pixels) of the box controlled by the plugin</td> <td><a href="/en-US/docs/Web/HTML/Element/embed#height"><code>height</code></a><br><a href="/en-US/docs/Web/HTML/Element/embed#width"><code>width</code></a></td> <td><a href="/en-US/docs/Web/HTML/Element/object#height"><code>height</code></a><br><a href="/en-US/docs/Web/HTML/Element/object#width"><code>width</code></a></td> </tr> <tr> <td>Independent HTML content as a fallback for an unavailable resource</td> <td>Not supported (<code><noembed></code> is obsolete)</td> <td> Contained within the opening and closing <code><object></code> tags </td> </tr> </tbody> </table></figure> <p>Let's look at an <code><object></code> example that embeds a PDF into a page (see the <a href="https://mdn.github.io/learning-area/html/multimedia-and-embedding/other-embedding-technologies/object-pdf.html" class="external" target="_blank">live example</a> and the <a href="https://github.com/mdn/learning-area/blob/main/html/multimedia-and-embedding/other-embedding-technologies/object-pdf.html" class="external" target="_blank">source code</a>):</p> <div class="code-example"><div class="example-header"><span class="language-name">html</span></div><pre class="brush: html notranslate"><code><object data="my-pdf.pdf" type="application/pdf" width="800" height="1200"> <p> You don't have a PDF plugin, but you can <a href="my-pdf.pdf">download the PDF file. </a> </p> </object> </code></pre></div> <p>PDFs were a necessary stepping stone between paper and digital, but they pose many <a href="https://webaim.org/techniques/acrobat/acrobat" class="external" target="_blank">accessibility challenges</a> and can be hard to read on small screens. They do still tend to be popular in some circles, but it is much better to link to them so they can be downloaded or read on a separate page, rather than embedding them in a webpage.</p></div></section><section aria-labelledby="test_your_skills!"><h2 id="test_your_skills!"><a href="#test_your_skills!">Test your skills!</a></h2><div class="section-content"><p>You've reached the end of this article, but can you remember the most important information? You can find some further tests to verify that you've retained this information before you move on — see <a href="/en-US/docs/Learn/HTML/Multimedia_and_embedding/Video_and_audio_content/Test_your_skills:_Multimedia_and_embedding">Test your skills: Multimedia and embedding</a>.</p></div></section><section aria-labelledby="summary"><h2 id="summary"><a href="#summary">Summary</a></h2><div class="section-content"><p>The topic of embedding other content in web documents can quickly become very complex, so in this article, we've tried to introduce it in a simple, familiar way that will immediately seem relevant, while still hinting at some of the more advanced features of the involved technologies. To start with, you are unlikely to use embedding for much beyond including third-party content like maps and videos on your pages. As you become more experienced, however, you are likely to start finding more uses for them.</p> <p>There are many other technologies that involve embedding external content besides the ones we discussed here. We saw some in earlier articles, such as <a href="/en-US/docs/Web/HTML/Element/video"><code><video></code></a>, <a href="/en-US/docs/Web/HTML/Element/audio"><code><audio></code></a>, and <a href="/en-US/docs/Web/HTML/Element/img"><code><img></code></a>, but there are others to discover, such as <a href="/en-US/docs/Web/HTML/Element/canvas"><code><canvas></code></a> for JavaScript-generated 2D and 3D graphics, and <a href="/en-US/docs/Web/SVG/Element/svg"><code><svg></code></a> for embedding vector graphics. We'll look at <a href="/en-US/docs/Web/SVG">SVG</a> in the next article of the module.</p><ul class="prev-next"> <li><a class="button secondary" href="/en-US/docs/Learn/HTML/Multimedia_and_embedding/Video_and_audio_content"><span class="button-wrap"> Previous </span></a></li> <li><a class="button secondary" href="/en-US/docs/Learn/HTML/Multimedia_and_embedding"><span class="button-wrap"> Overview: Multimedia and embedding</span></a></li> <li><a class="button secondary" href="/en-US/docs/Learn/HTML/Multimedia_and_embedding/Adding_vector_graphics_to_the_Web"><span class="button-wrap"> Next </span></a></li> </ul></div></section></article><aside class="article-footer"><div class="article-footer-inner"><div class="svg-container"><svg xmlns="http://www.w3.org/2000/svg" width="162" height="162" viewBox="0 0 162 162" fill="none" role="none"><mask id="b" fill="#fff"><path d="M97.203 47.04c8.113-7.886 18.004-13.871 28.906-17.492a78 78 0 0 1 33.969-3.39c11.443 1.39 22.401 5.295 32.024 11.411s17.656 14.28 23.476 23.86c5.819 9.579 9.269 20.318 10.083 31.385a69.85 69.85 0 0 1-5.387 32.44c-4.358 10.272-11.115 19.443-19.747 26.801-8.632 7.359-18.908 12.709-30.034 15.637l-6.17-21.698c7.666-2.017 14.746-5.703 20.694-10.773 5.948-5.071 10.603-11.389 13.606-18.467a48.14 48.14 0 0 0 3.712-22.352c-.561-7.625-2.938-15.025-6.948-21.625s-9.544-12.226-16.175-16.44-14.181-6.904-22.065-7.863a53.75 53.75 0 0 0-23.405 2.336c-7.513 2.495-14.327 6.62-19.918 12.053z"></path></mask><path stroke="url(#a)" stroke-dasharray="6, 6" stroke-width="2" d="M97.203 47.04c8.113-7.886 18.004-13.871 28.906-17.492a78 78 0 0 1 33.969-3.39c11.443 1.39 22.401 5.295 32.024 11.411s17.656 14.28 23.476 23.86c5.819 9.579 9.269 20.318 10.083 31.385a69.85 69.85 0 0 1-5.387 32.44c-4.358 10.272-11.115 19.443-19.747 26.801-8.632 7.359-18.908 12.709-30.034 15.637l-6.17-21.698c7.666-2.017 14.746-5.703 20.694-10.773 5.948-5.071 10.603-11.389 13.606-18.467a48.14 48.14 0 0 0 3.712-22.352c-.561-7.625-2.938-15.025-6.948-21.625s-9.544-12.226-16.175-16.44-14.181-6.904-22.065-7.863a53.75 53.75 0 0 0-23.405 2.336c-7.513 2.495-14.327 6.62-19.918 12.053z" mask="url(#b)" style="stroke:url(#a)" transform="translate(-63.992 -25.587)"></path><ellipse cx="8.066" cy="111.597" fill="var(--background-tertiary)" rx="53.677" ry="53.699" transform="matrix(.71707 -.697 .7243 .6895 0 0)"></ellipse><g clip-path="url(#c)" transform="translate(-63.992 -25.587)"><path fill="#9abff5" d="m144.256 137.379 32.906 12.434a4.41 4.41 0 0 1 2.559 5.667l-9.326 24.679a4.41 4.41 0 0 1-5.667 2.559l-8.226-3.108-2.332 6.17c-.466 1.233-.375 1.883-1.609 1.417l-2.253-.527c-.411-.155-.95-.594-1.206-1.161l-4.734-10.484-12.545-4.741a4.41 4.41 0 0 1-2.559-5.667l9.325-24.679a4.41 4.41 0 0 1 5.667-2.559m9.961 29.617 8.227 3.108 3.264-8.638-.498-6.768-4.113-1.555.548 7.258-4.319-1.632zm-12.339-4.663 8.226 3.108 3.264-8.637-.498-6.769-4.113-1.554.548 7.257-4.319-1.632z"></path></g><g clip-path="url(#d)" transform="translate(-63.992 -25.587)"><path fill="#81b0f3" d="M135.35 60.136 86.67 41.654c-3.346-1.27-7.124.428-8.394 3.775L64.414 81.938c-1.27 3.347.428 7.125 3.774 8.395l12.17 4.62-3.465 9.128c-.693 1.826-1.432 2.457.394 3.15l3.014 1.625c.609.231 1.637.274 2.477-.104l15.53-6.983 18.56 7.047c3.346 1.27 7.124-.428 8.395-3.775l13.862-36.51c1.27-3.346-.428-7.124-3.775-8.395M95.261 83.207l-12.17-4.62 4.852-12.779 7.19-7.017 6.085 2.31-7.725 7.51 6.389 2.426zm18.255 6.93-12.17-4.62 4.852-12.778 7.189-7.017 6.085 2.31-7.725 7.51 6.39 2.426z"></path></g><defs><clipPath id="c"><path fill="#fff" d="m198.638 146.586-65.056-24.583-24.583 65.057 65.056 24.582z"></path></clipPath><clipPath id="d"><path fill="#fff" d="m66.438 14.055 96.242 36.54-36.54 96.243-96.243-36.54z"></path></clipPath><linearGradient id="a" x1="97.203" x2="199.995" y1="47.04" y2="152.793" gradientUnits="userSpaceOnUse"><stop stop-color="#086DFC"></stop><stop offset="0.246" stop-color="#2C81FA"></stop><stop offset="0.516" stop-color="#5497F8"></stop><stop offset="0.821" stop-color="#80B0F6"></stop><stop offset="1" stop-color="#9ABFF5"></stop></linearGradient></defs></svg></div><h2>Help improve MDN</h2><fieldset class="feedback"><label>Was this page helpful to you?</label><div class="button-container"><button type="button" class="button primary has-icon yes"><span class="button-wrap"><span class="icon icon-thumbs-up "></span>Yes</span></button><button type="button" class="button primary has-icon no"><span class="button-wrap"><span class="icon icon-thumbs-down "></span>No</span></button></div></fieldset><a class="contribute" href="https://github.com/mdn/content/blob/main/CONTRIBUTING.md" title="This will take you to our contribution guidelines on GitHub." target="_blank" rel="noopener noreferrer">Learn how to contribute</a>.<p class="last-modified-date">This page was last modified on <time dateTime="2024-10-25T00:08:46.000Z">Oct 25, 2024</time> by <a href="/en-US/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies/contributors.txt" rel="nofollow">MDN contributors</a>.</p><div id="on-github" class="on-github"><a href="https://github.com/mdn/content/blob/main/files/en-us/learn/html/multimedia_and_embedding/other_embedding_technologies/index.md?plain=1" title="Folder: en-us/learn/html/multimedia_and_embedding/other_embedding_technologies (Opens in a new tab)" target="_blank" rel="noopener noreferrer">View this page on GitHub</a> • <a href="https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FLearn%2FHTML%2FMultimedia_and_embedding%2FOther_embedding_technologies&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Flearn%2Fhtml%2Fmultimedia_and_embedding%2Fother_embedding_technologies%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FLearn%2FHTML%2FMultimedia_and_embedding%2FOther_embedding_technologies%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Flearn%2Fhtml%2Fmultimedia_and_embedding%2Fother_embedding_technologies%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2Fbaac7f2a43813a7930ff97b11d9c38b413f97c78%0A*+Document+last+modified%3A+2024-10-25T00%3A08%3A46.000Z%0A%0A%3C%2Fdetails%3E" title="This will take you to GitHub to file a new issue." target="_blank" rel="noopener noreferrer">Report a problem with this content</a></div></div></aside></main></div></div><footer id="nav-footer" class="page-footer"><div class="page-footer-grid"><div class="page-footer-logo-col"><a href="/" class="mdn-footer-logo" aria-label="MDN homepage"><svg width="48" height="17" viewBox="0 0 48 17" fill="none" xmlns="http://www.w3.org/2000/svg"><title id="mdn-footer-logo-svg">MDN logo</title><path d="M20.04 16.512H15.504V10.416C15.504 9.488 15.344 8.824 15.024 8.424C14.72 8.024 14.264 7.824 13.656 7.824C12.92 7.824 12.384 8.064 12.048 8.544C11.728 9.024 11.568 9.64 11.568 10.392V14.184H13.008V16.512H8.472V10.416C8.472 9.488 8.312 8.824 7.992 8.424C7.688 8.024 7.232 7.824 6.624 7.824C5.872 7.824 5.336 8.064 5.016 8.544C4.696 9.024 4.536 9.64 4.536 10.392V14.184H6.6V16.512H0V14.184H1.44V8.04H0.024V5.688H4.536V7.32C5.224 6.088 6.32 5.472 7.824 5.472C8.608 5.472 9.328 5.664 9.984 6.048C10.64 6.432 11.096 7.016 11.352 7.8C11.992 6.248 13.168 5.472 14.88 5.472C15.856 5.472 16.72 5.776 17.472 6.384C18.224 6.992 18.6 7.936 18.6 9.216V14.184H20.04V16.512Z" fill="currentColor"></path><path d="M33.6714 16.512H29.1354V14.496C28.8314 15.12 28.3834 15.656 27.7914 16.104C27.1994 16.536 26.4154 16.752 25.4394 16.752C24.0154 16.752 22.8954 16.264 22.0794 15.288C21.2634 14.312 20.8554 12.984 20.8554 11.304C20.8554 9.688 21.2554 8.312 22.0554 7.176C22.8554 6.04 24.0634 5.472 25.6794 5.472C26.5594 5.472 27.2794 5.648 27.8394 6C28.3994 6.352 28.8314 6.8 29.1354 7.344V2.352H26.9754V0H32.2314V14.184H33.6714V16.512ZM29.1354 11.04V10.776C29.1354 9.88 28.8954 9.184 28.4154 8.688C27.9514 8.176 27.3674 7.92 26.6634 7.92C25.9754 7.92 25.3674 8.176 24.8394 8.688C24.3274 9.2 24.0714 10.008 24.0714 11.112C24.0714 12.152 24.3114 12.944 24.7914 13.488C25.2714 14.032 25.8394 14.304 26.4954 14.304C27.3114 14.304 27.9514 13.96 28.4154 13.272C28.8954 12.584 29.1354 11.84 29.1354 11.04Z" fill="currentColor"></path><path d="M47.9589 16.512H41.9829V14.184H43.4229V10.416C43.4229 9.488 43.2629 8.824 42.9429 8.424C42.6389 8.024 42.1829 7.824 41.5749 7.824C40.8389 7.824 40.2709 8.056 39.8709 8.52C39.4709 8.968 39.2629 9.56 39.2469 10.296V14.184H40.6869V16.512H34.7109V14.184H36.1509V8.04H34.5909V5.688H39.2469V7.344C39.9669 6.096 41.1269 5.472 42.7269 5.472C43.7509 5.472 44.6389 5.776 45.3909 6.384C46.1429 6.992 46.5189 7.936 46.5189 9.216V14.184H47.9589V16.512Z" fill="currentColor"></path></svg></a><p>Your blueprint for a better internet.</p><ul class="social-icons"><li><a href="https://mozilla.social/@mdn" target="_blank" rel="me noopener noreferrer"><span class="icon icon-mastodon"></span><span class="visually-hidden">MDN on Mastodon</span></a></li><li><a href="https://twitter.com/mozdevnet" target="_blank" rel="noopener noreferrer"><span class="icon icon-twitter-x"></span><span class="visually-hidden">MDN on X (formerly Twitter)</span></a></li><li><a href="https://github.com/mdn/" target="_blank" rel="noopener noreferrer"><span class="icon icon-github-mark-small"></span><span class="visually-hidden">MDN on GitHub</span></a></li><li><a href="/en-US/blog/rss.xml" target="_blank"><span class="icon icon-feed"></span><span class="visually-hidden">MDN Blog RSS Feed</span></a></li></ul></div><div class="page-footer-nav-col-1"><h2 class="footer-nav-heading">MDN</h2><ul class="footer-nav-list"><li class="footer-nav-item"><a href="/en-US/about">About</a></li><li class="footer-nav-item"><a href="/en-US/blog/">Blog</a></li><li class="footer-nav-item"><a href="https://www.mozilla.org/en-US/careers/listings/?team=ProdOps" target="_blank" rel="noopener noreferrer">Careers</a></li><li class="footer-nav-item"><a href="/en-US/advertising">Advertise with us</a></li></ul></div><div class="page-footer-nav-col-2"><h2 class="footer-nav-heading">Support</h2><ul class="footer-nav-list"><li class="footer-nav-item"><a class="footer-nav-link" href="https://support.mozilla.org/products/mdn-plus">Product help</a></li><li class="footer-nav-item"><a class="footer-nav-link" href="/en-US/docs/MDN/Community/Issues">Report an issue</a></li></ul></div><div class="page-footer-nav-col-3"><h2 class="footer-nav-heading">Our communities</h2><ul class="footer-nav-list"><li class="footer-nav-item"><a class="footer-nav-link" href="/en-US/community">MDN Community</a></li><li class="footer-nav-item"><a class="footer-nav-link" href="https://discourse.mozilla.org/c/mdn/236" target="_blank" rel="noopener noreferrer">MDN Forum</a></li><li class="footer-nav-item"><a class="footer-nav-link" href="/discord" target="_blank" rel="noopener noreferrer">MDN Chat</a></li></ul></div><div class="page-footer-nav-col-4"><h2 class="footer-nav-heading">Developers</h2><ul class="footer-nav-list"><li class="footer-nav-item"><a class="footer-nav-link" href="/en-US/docs/Web">Web Technologies</a></li><li class="footer-nav-item"><a class="footer-nav-link" href="/en-US/docs/Learn">Learn Web Development</a></li><li class="footer-nav-item"><a class="footer-nav-link" href="/en-US/plus">MDN Plus</a></li><li class="footer-nav-item"><a href="https://hacks.mozilla.org/" target="_blank" rel="noopener noreferrer">Hacks Blog</a></li></ul></div><div class="page-footer-moz"><a href="https://www.mozilla.org/" class="footer-moz-logo-link" target="_blank" rel="noopener noreferrer"><svg width="112" height="32" fill="none" xmlns="http://www.w3.org/2000/svg"><title id="mozilla-footer-logo-svg">Mozilla logo</title><path d="M41.753 14.218c-2.048 0-3.324 1.522-3.324 4.157 0 2.423 1.119 4.286 3.29 4.286 2.082 0 3.447-1.678 3.447-4.347 0-2.826-1.522-4.096-3.413-4.096Zm54.89 7.044c0 .901.437 1.618 1.645 1.618 1.427 0 2.949-1.024 3.044-3.352-.649-.095-1.365-.185-2.02-.185-1.426-.005-2.668.397-2.668 1.92Z" fill="currentColor"></path><path d="M0 0v32h111.908V0H0Zm32.56 25.426h-5.87v-7.884c0-2.423-.806-3.352-2.39-3.352-1.924 0-2.702 1.365-2.702 3.324v4.868h1.864v3.044h-5.864v-7.884c0-2.423-.806-3.352-2.39-3.352-1.924 0-2.702 1.365-2.702 3.324v4.868h2.669v3.044H6.642v-3.044h1.863v-7.918H6.642V11.42h5.864v2.11c.839-1.489 2.3-2.39 4.252-2.39 2.02 0 3.878.963 4.566 3.01.778-1.862 2.361-3.01 4.566-3.01 2.512 0 4.812 1.522 4.812 4.84v6.402h1.863v3.044h-.005Zm9.036.307c-4.314 0-7.296-2.635-7.296-7.106 0-4.096 2.484-7.481 7.514-7.481s7.481 3.38 7.481 7.29c0 4.472-3.228 7.297-7.699 7.297Zm22.578-.307H51.942l-.403-2.11 7.7-8.846h-4.376l-.621 2.17-2.888-.313.498-4.907h12.294l.313 2.11-7.767 8.852h4.533l.654-2.172 3.167.308-.872 4.908Zm7.99 0h-4.191v-5.03h4.19v5.03Zm0-8.976h-4.191v-5.03h4.19v5.03Zm2.618 8.976 6.054-21.358h3.945l-6.054 21.358h-3.945Zm8.136 0 6.048-21.358h3.945l-6.054 21.358h-3.939Zm21.486.307c-1.863 0-2.887-1.085-3.072-2.792-.805 1.427-2.232 2.792-4.498 2.792-2.02 0-4.314-1.085-4.314-4.006 0-3.447 3.323-4.253 6.518-4.253.778 0 1.584.034 2.3.124v-.465c0-1.427-.034-3.133-2.3-3.133-.84 0-1.488.061-2.143.402l-.453 1.578-3.195-.34.549-3.224c2.45-.996 3.692-1.27 5.992-1.27 3.01 0 5.556 1.55 5.556 4.75v6.083c0 .805.314 1.085.963 1.085.184 0 .375-.034.587-.095l.034 2.11a5.432 5.432 0 0 1-2.524.654Z" fill="currentColor"></path></svg></a><ul class="footer-moz-list"><li class="footer-moz-item"><a href="https://www.mozilla.org/privacy/websites/" class="footer-moz-link" target="_blank" rel="noopener noreferrer">Website Privacy Notice</a></li><li class="footer-moz-item"><a href="https://www.mozilla.org/privacy/websites/#cookies" class="footer-moz-link" target="_blank" rel="noopener noreferrer">Cookies</a></li><li class="footer-moz-item"><a href="https://www.mozilla.org/about/legal/terms/mozilla" class="footer-moz-link" target="_blank" rel="noopener noreferrer">Legal</a></li><li class="footer-moz-item"><a href="https://www.mozilla.org/about/governance/policies/participation/" class="footer-moz-link" target="_blank" rel="noopener noreferrer">Community Participation Guidelines</a></li></ul></div><div class="page-footer-legal"><p id="license" class="page-footer-legal-text">Visit <a href="https://www.mozilla.org" target="_blank" rel="noopener noreferrer">Mozilla Corporation’s</a> not-for-profit parent, the <a target="_blank" rel="noopener noreferrer" href="https://foundation.mozilla.org/">Mozilla Foundation</a>.<br/>Portions of this content are ©1998–2024 by individual mozilla.org contributors. Content available under <a href="/en-US/docs/MDN/Writing_guidelines/Attrib_copyright_license">a Creative Commons license</a>.</p></div></div></footer></div><script type="application/json" id="hydration">{"url":"/en-US/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies","doc":{"isMarkdown":true,"isTranslated":false,"isActive":true,"flaws":{},"title":"From object to iframe — other embedding technologies","mdn_url":"/en-US/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies","locale":"en-US","native":"English (US)","sidebarHTML":"<ol><li class=\"section\"><a href=\"/en-US/docs/Learn/Getting_started_with_the_web\">Complete beginners start here!</a></li><li><details><summary>Getting started with the web</summary><ol><li><a href=\"/en-US/docs/Learn/Getting_started_with_the_web\">Getting started with the web</a></li><li><a href=\"/en-US/docs/Learn/Getting_started_with_the_web/Installing_basic_software\">Installing basic software</a></li><li><a href=\"/en-US/docs/Learn/Getting_started_with_the_web/What_will_your_website_look_like\">What will your website look like?</a></li><li><a href=\"/en-US/docs/Learn/Getting_started_with_the_web/Dealing_with_files\">Dealing with files</a></li><li><a href=\"/en-US/docs/Learn/Getting_started_with_the_web/HTML_basics\">HTML basics</a></li><li><a href=\"/en-US/docs/Learn/Getting_started_with_the_web/CSS_basics\">CSS basics</a></li><li><a href=\"/en-US/docs/Learn/Getting_started_with_the_web/JavaScript_basics\">JavaScript basics</a></li><li><a href=\"/en-US/docs/Learn/Getting_started_with_the_web/Publishing_your_website\">Publishing your website</a></li><li><a href=\"/en-US/docs/Learn/Getting_started_with_the_web/How_the_Web_works\">How the web works</a></li></ol></details></li><li class=\"section\"><a href=\"/en-US/docs/Learn/HTML\">HTML — Structuring the web</a></li><li><details><summary>Introduction to HTML</summary><ol><li><a href=\"/en-US/docs/Learn/HTML/Introduction_to_HTML\">Introduction to HTML</a></li><li><a href=\"/en-US/docs/Learn/HTML/Introduction_to_HTML/Getting_started\">Getting started with HTML</a></li><li><a href=\"/en-US/docs/Learn/HTML/Introduction_to_HTML/The_head_metadata_in_HTML\">What's in the head? Metadata in HTML</a></li><li><a href=\"/en-US/docs/Learn/HTML/Introduction_to_HTML/HTML_text_fundamentals\">HTML text fundamentals</a></li><li><a href=\"/en-US/docs/Learn/HTML/Introduction_to_HTML/Creating_hyperlinks\">Creating hyperlinks</a></li><li><a href=\"/en-US/docs/Learn/HTML/Introduction_to_HTML/Advanced_text_formatting\">Advanced text formatting</a></li><li><a href=\"/en-US/docs/Learn/HTML/Introduction_to_HTML/Document_and_website_structure\">Document and website structure</a></li><li><a href=\"/en-US/docs/Learn/HTML/Introduction_to_HTML/Debugging_HTML\">Debugging HTML</a></li><li><a href=\"/en-US/docs/Learn/HTML/Introduction_to_HTML/Marking_up_a_letter\">Marking up a letter</a></li><li><a href=\"/en-US/docs/Learn/HTML/Introduction_to_HTML/Structuring_a_page_of_content\">Structuring a page of content</a></li></ol></details></li><li><details open=\"\"><summary>Multimedia and embedding</summary><ol><li><a href=\"/en-US/docs/Learn/HTML/Multimedia_and_embedding\">Multimedia and embedding</a></li><li><a href=\"/en-US/docs/Learn/HTML/Multimedia_and_embedding/Images_in_HTML\">Images in HTML</a></li><li><a href=\"/en-US/docs/Learn/HTML/Multimedia_and_embedding/Video_and_audio_content\">Video and audio content</a></li><li><em><a href=\"/en-US/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies\" aria-current=\"page\">From object to iframe — other embedding technologies</a></em></li><li><a href=\"/en-US/docs/Learn/HTML/Multimedia_and_embedding/Adding_vector_graphics_to_the_Web\">Adding vector graphics to the web</a></li><li><a href=\"/en-US/docs/Learn/HTML/Multimedia_and_embedding/Responsive_images\">Responsive images</a></li><li><a href=\"/en-US/docs/Learn/HTML/Multimedia_and_embedding/Mozilla_splash_page\">Mozilla splash page</a></li></ol></details></li><li><details><summary>HTML tables</summary><ol><li><a href=\"/en-US/docs/Learn/HTML/Tables\">HTML tables</a></li><li><a href=\"/en-US/docs/Learn/HTML/Tables/Basics\">HTML table basics</a></li><li><a href=\"/en-US/docs/Learn/HTML/Tables/Advanced\">HTML table advanced features and accessibility</a></li><li><a href=\"/en-US/docs/Learn/HTML/Tables/Structuring_planet_data\">Structuring planet data</a></li></ol></details></li><li class=\"section\"><a href=\"/en-US/docs/Learn/CSS\">CSS — Styling the web</a></li><li><details><summary>CSS first steps</summary><ol><li><a href=\"/en-US/docs/Learn/CSS/First_steps\">CSS first steps</a></li><li><a href=\"/en-US/docs/Learn/CSS/First_steps/What_is_CSS\">What is CSS?</a></li><li><a href=\"/en-US/docs/Learn/CSS/First_steps/Getting_started\">Getting started with CSS</a></li><li><a href=\"/en-US/docs/Learn/CSS/First_steps/How_CSS_is_structured\">How CSS is structured</a></li><li><a href=\"/en-US/docs/Learn/CSS/First_steps/How_CSS_works\">How CSS works</a></li><li><a href=\"/en-US/docs/Learn/CSS/First_steps/Styling_a_biography_page\">Styling a biography page</a></li></ol></details></li><li><details><summary>CSS building blocks</summary><ol><li><a href=\"/en-US/docs/Learn/CSS/Building_blocks\">CSS building blocks</a></li><li><a href=\"/en-US/docs/Learn/CSS/Building_blocks/Selectors\">CSS selectors</a></li><li><a href=\"/en-US/docs/Learn/CSS/Building_blocks/Selectors/Type_Class_and_ID_Selectors\">Type, class, and ID selectors</a></li><li><a href=\"/en-US/docs/Learn/CSS/Building_blocks/Selectors/Attribute_selectors\">Attribute selectors</a></li><li><a href=\"/en-US/docs/Learn/CSS/Building_blocks/Selectors/Pseudo-classes_and_pseudo-elements\">Pseudo-classes and pseudo-elements</a></li><li><a href=\"/en-US/docs/Learn/CSS/Building_blocks/Selectors/Combinators\">Combinators</a></li><li><a href=\"/en-US/docs/Learn/CSS/Building_blocks/Cascade_and_inheritance\">Cascade, specificity, and inheritance</a></li><li><a href=\"/en-US/docs/Learn/CSS/Building_blocks/Cascade_layers\">Cascade layers</a></li><li><a href=\"/en-US/docs/Learn/CSS/Building_blocks/The_box_model\">The box model</a></li><li><a href=\"/en-US/docs/Learn/CSS/Building_blocks/Backgrounds_and_borders\">Backgrounds and borders</a></li><li><a href=\"/en-US/docs/Learn/CSS/Building_blocks/Handling_different_text_directions\">Handling different text directions</a></li><li><a href=\"/en-US/docs/Learn/CSS/Building_blocks/Overflowing_content\">Overflowing content</a></li><li><a href=\"/en-US/docs/Learn/CSS/Building_blocks/Values_and_units\">CSS values and units</a></li><li><a href=\"/en-US/docs/Learn/CSS/Building_blocks/Sizing_items_in_CSS\">Sizing items in CSS</a></li><li><a href=\"/en-US/docs/Learn/CSS/Building_blocks/Images_media_form_elements\">Images, media, and form elements</a></li><li><a href=\"/en-US/docs/Learn/CSS/Building_blocks/Styling_tables\">Styling tables</a></li><li><a href=\"/en-US/docs/Learn/CSS/Building_blocks/Advanced_styling_effects\">Advanced styling effects</a></li><li><a href=\"/en-US/docs/Learn/CSS/Building_blocks/Debugging_CSS\">Debugging CSS</a></li><li><a href=\"/en-US/docs/Learn/CSS/Building_blocks/Organizing\">Organizing your CSS</a></li><li><a href=\"/en-US/docs/Learn/CSS/Building_blocks/Fundamental_CSS_comprehension\">Fundamental CSS comprehension</a></li><li><a href=\"/en-US/docs/Learn/CSS/Building_blocks/Creating_fancy_letterheaded_paper\">Creating fancy letterheaded paper</a></li><li><a href=\"/en-US/docs/Learn/CSS/Building_blocks/A_cool_looking_box\">A cool-looking box</a></li></ol></details></li><li><details><summary>Styling text</summary><ol><li><a href=\"/en-US/docs/Learn/CSS/Styling_text\">CSS styling text</a></li><li><a href=\"/en-US/docs/Learn/CSS/Styling_text/Fundamentals\">Fundamental text and font styling</a></li><li><a href=\"/en-US/docs/Learn/CSS/Styling_text/Styling_lists\">Styling lists</a></li><li><a href=\"/en-US/docs/Learn/CSS/Styling_text/Styling_links\">Styling links</a></li><li><a href=\"/en-US/docs/Learn/CSS/Styling_text/Web_fonts\">Web fonts</a></li><li><a href=\"/en-US/docs/Learn/CSS/Styling_text/Typesetting_a_homepage\">Typesetting a community school homepage</a></li></ol></details></li><li><details><summary>CSS layout</summary><ol><li><a href=\"/en-US/docs/Learn/CSS/CSS_layout\">CSS layout</a></li><li><a href=\"/en-US/docs/Learn/CSS/CSS_layout/Introduction\">Introduction to CSS layout</a></li><li><a href=\"/en-US/docs/Learn/CSS/CSS_layout/Normal_Flow\">Normal Flow</a></li><li><a href=\"/en-US/docs/Learn/CSS/CSS_layout/Flexbox\">Flexbox</a></li><li><a href=\"/en-US/docs/Learn/CSS/CSS_layout/Grids\">Grids</a></li><li><a href=\"/en-US/docs/Learn/CSS/CSS_layout/Floats\">Floats</a></li><li><a href=\"/en-US/docs/Learn/CSS/CSS_layout/Positioning\">Positioning</a></li><li><a href=\"/en-US/docs/Learn/CSS/CSS_layout/Multiple-column_Layout\">Multiple-column layout</a></li><li><a href=\"/en-US/docs/Learn/CSS/CSS_layout/Responsive_Design\">Responsive design</a></li><li><a href=\"/en-US/docs/Learn/CSS/CSS_layout/Media_queries\">Beginner's guide to media queries</a></li><li><a href=\"/en-US/docs/Learn/CSS/CSS_layout/Legacy_Layout_Methods\">Legacy layout methods</a></li><li><a href=\"/en-US/docs/Learn/CSS/CSS_layout/Supporting_Older_Browsers\">Supporting older browsers</a></li><li><a href=\"/en-US/docs/Learn/CSS/CSS_layout/Fundamental_Layout_Comprehension\">Fundamental layout comprehension</a></li></ol></details></li><li class=\"section\"><a href=\"/en-US/docs/Learn/JavaScript\">JavaScript — Dynamic client-side scripting</a></li><li><details><summary>JavaScript first steps</summary><ol><li><a href=\"/en-US/docs/Learn/JavaScript/First_steps\">JavaScript first steps</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/First_steps/What_is_JavaScript\">What is JavaScript?</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/First_steps/A_first_splash\">A first splash into JavaScript</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/First_steps/What_went_wrong\">What went wrong? Troubleshooting JavaScript</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/First_steps/Variables\">Storing the information you need — Variables</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/First_steps/Math\">Basic math in JavaScript — numbers and operators</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/First_steps/Strings\">Handling text — strings in JavaScript</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/First_steps/Useful_string_methods\">Useful string methods</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/First_steps/Arrays\">Arrays</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/First_steps/Silly_story_generator\">Silly story generator</a></li></ol></details></li><li><details><summary>JavaScript building blocks</summary><ol><li><a href=\"/en-US/docs/Learn/JavaScript/Building_blocks\">JavaScript building blocks</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Building_blocks/conditionals\">Making decisions in your code — conditionals</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Building_blocks/Looping_code\">Looping code</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Building_blocks/Functions\">Functions — reusable blocks of code</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Building_blocks/Build_your_own_function\">Build your own function</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Building_blocks/Return_values\">Function return values</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Building_blocks/Events\">Introduction to events</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Building_blocks/Event_bubbling\">Event bubbling</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Building_blocks/Image_gallery\">Image gallery</a></li></ol></details></li><li><details><summary>Introducing JavaScript objects</summary><ol><li><a href=\"/en-US/docs/Learn/JavaScript/Objects\">Introducing JavaScript objects</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Objects/Basics\">JavaScript object basics</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Objects/Object_prototypes\">Object prototypes</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Objects/Object-oriented_programming\">Object-oriented programming</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Objects/Classes_in_JavaScript\">Classes in JavaScript</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Objects/JSON\">Working with JSON</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Objects/Object_building_practice\">Object building practice</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Objects/Adding_bouncing_balls_features\">Adding features to our bouncing balls demo</a></li></ol></details></li><li><details><summary>Asynchronous JavaScript</summary><ol><li><a href=\"/en-US/docs/Learn/JavaScript/Asynchronous\">Asynchronous JavaScript</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Asynchronous/Introducing\">Introducing asynchronous JavaScript</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Asynchronous/Promises\">How to use promises</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Asynchronous/Implementing_a_promise-based_API\">How to implement a promise-based API</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Asynchronous/Introducing_workers\">Introducing workers</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Asynchronous/Sequencing_animations\">Sequencing animations</a></li></ol></details></li><li><details><summary>Client-side web APIs</summary><ol><li><a href=\"/en-US/docs/Learn/JavaScript/Client-side_web_APIs\">Client-side web APIs</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Client-side_web_APIs/Introduction\">Introduction to web APIs</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Client-side_web_APIs/Manipulating_documents\">Manipulating documents</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Client-side_web_APIs/Fetching_data\">Fetching data from the server</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Client-side_web_APIs/Third_party_APIs\">Third-party APIs</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Client-side_web_APIs/Drawing_graphics\">Drawing graphics</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Client-side_web_APIs/Video_and_audio_APIs\">Video and Audio APIs</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Client-side_web_APIs/Client-side_storage\">Client-side storage</a></li></ol></details></li><li class=\"section\"><a href=\"/en-US/docs/Learn/Forms\">Web forms — Working with user data</a></li><li><details><summary>Web form building blocks</summary><ol><li><a href=\"/en-US/docs/Learn/Forms\">Web form building blocks</a></li><li><a href=\"/en-US/docs/Learn/Forms/Your_first_form\">Your first form</a></li><li><a href=\"/en-US/docs/Learn/Forms/How_to_structure_a_web_form\">How to structure a web form</a></li><li><a href=\"/en-US/docs/Learn/Forms/Basic_native_form_controls\">Basic native form controls</a></li><li><a href=\"/en-US/docs/Learn/Forms/HTML5_input_types\">The HTML5 input types</a></li><li><a href=\"/en-US/docs/Learn/Forms/Other_form_controls\">Other form controls</a></li><li><a href=\"/en-US/docs/Learn/Forms/Styling_web_forms\">Styling web forms</a></li><li><a href=\"/en-US/docs/Learn/Forms/Advanced_form_styling\">Advanced form styling</a></li><li><a href=\"/en-US/docs/Learn/Forms/UI_pseudo-classes\">UI pseudo-classes</a></li><li><a href=\"/en-US/docs/Learn/Forms/Form_validation\">Client-side form validation</a></li><li><a href=\"/en-US/docs/Learn/Forms/Sending_and_retrieving_form_data\">Sending form data</a></li></ol></details></li><li><details><summary>Advanced web form techniques</summary><ol><li><a href=\"/en-US/docs/Learn/Forms/How_to_build_custom_form_controls\">How to build custom form controls</a></li><li><a href=\"/en-US/docs/Learn/Forms/Sending_forms_through_JavaScript\">Sending forms through JavaScript</a></li><li><a href=\"/en-US/docs/Learn/Forms/Property_compatibility_table_for_form_controls\">CSS property compatibility table for form controls</a></li><li><a href=\"/en-US/docs/Learn/Forms/HTML_forms_in_legacy_browsers\">HTML forms in legacy browsers</a></li></ol></details></li><li class=\"section\"><a href=\"/en-US/docs/Learn/Accessibility\">Accessibility — Make the web usable by everyone</a></li><li><details><summary>Accessibility guides</summary><ol><li><a href=\"/en-US/docs/Learn/Accessibility\">Accessibility</a></li><li><a href=\"/en-US/docs/Learn/Accessibility/What_is_accessibility\">What is accessibility?</a></li><li><a href=\"/en-US/docs/Learn/Accessibility/HTML\">HTML: A good basis for accessibility</a></li><li><a href=\"/en-US/docs/Learn/Accessibility/CSS_and_JavaScript\">CSS and JavaScript accessibility best practices</a></li><li><a href=\"/en-US/docs/Learn/Accessibility/WAI-ARIA_basics\">WAI-ARIA basics</a></li><li><a href=\"/en-US/docs/Learn/Accessibility/Multimedia\">Accessible multimedia</a></li><li><a href=\"/en-US/docs/Learn/Accessibility/Mobile\">Mobile accessibility</a></li><li><a href=\"/en-US/docs/Learn/Accessibility/Accessibility_troubleshooting\">Assessment: Accessibility troubleshooting</a></li></ol></details></li><li class=\"section\"><a href=\"/en-US/docs/Learn/Performance\">Performance — Making websites fast and responsive</a></li><li><details><summary>Performance guides</summary><ol><li><a href=\"/en-US/docs/Learn/Performance\">Web performance</a></li><li><a href=\"/en-US/docs/Learn/Performance/why_web_performance\">The \"why\" of web performance</a></li><li><a href=\"/en-US/docs/Learn/Performance/What_is_web_performance\">What is web performance?</a></li><li><a href=\"/en-US/docs/Learn/Performance/Perceived_performance\">Perceived performance</a></li><li><a href=\"/en-US/docs/Learn/Performance/Measuring_performance\">Measuring performance</a></li><li><a href=\"/en-US/docs/Learn/Performance/Multimedia\">Multimedia: Images</a></li><li><a href=\"/en-US/docs/Learn/Performance/video\">Multimedia: video</a></li><li><a href=\"/en-US/docs/Learn/Performance/JavaScript\">JavaScript performance optimization</a></li><li><a href=\"/en-US/docs/Learn/Performance/HTML\">HTML performance optimization</a></li><li><a href=\"/en-US/docs/Learn/Performance/CSS\">CSS performance optimization</a></li><li><a href=\"/en-US/docs/Learn/Performance/business_case_for_performance\">The business case for web performance</a></li></ol></details></li><li class=\"section\"><a href=\"/en-US/docs/Learn/MathML\">MathML — Writing mathematics with MathML</a></li><li><details><summary>MathML first steps</summary><ol><li><a href=\"/en-US/docs/Learn/MathML/First_steps\">MathML first steps</a></li><li><a href=\"/en-US/docs/Learn/MathML/First_steps/Getting_started\">Getting started with MathML</a></li><li><a href=\"/en-US/docs/Learn/MathML/First_steps/Text_containers\">MathML Text Containers</a></li><li><a href=\"/en-US/docs/Learn/MathML/First_steps/Fractions_and_roots\">MathML fractions and roots</a></li><li><a href=\"/en-US/docs/Learn/MathML/First_steps/Scripts\">MathML scripted elements</a></li><li><a href=\"/en-US/docs/Learn/MathML/First_steps/Tables\">MathML tables</a></li><li><a href=\"/en-US/docs/Learn/MathML/First_steps/Three_famous_mathematical_formulas\">Three famous mathematical formulas</a></li></ol></details></li><li class=\"section\"><a href=\"/en-US/docs/Learn/../Games\">Games — Developing games for the web</a></li><li><details><summary>Guides and tutorials</summary><ol><li><a href=\"/en-US/docs/Games/Introduction\">Introduction to game development for the Web</a></li><li><a href=\"/en-US/docs/Games/Techniques\">Techniques for game development</a></li><li><a href=\"/en-US/docs/Games/Tutorials\">Tutorials</a></li><li><a href=\"/en-US/docs/Games/Publishing_games\">Publishing games</a></li></ol></details></li><li class=\"section\"><a href=\"/en-US/docs/Learn/Tools_and_testing\">Tools and testing</a></li><li><details><summary>Client-side web development tools</summary><ol><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Understanding_client-side_tools\">Understanding client-side web development tools</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Understanding_client-side_tools/Overview\">Client-side tooling overview</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Understanding_client-side_tools/Command_line\">Command line crash course</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Understanding_client-side_tools/Package_management\">Package management basics</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Understanding_client-side_tools/Introducing_complete_toolchain\">Introducing a complete toolchain</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Understanding_client-side_tools/Deployment\">Deploying our app</a></li></ol></details></li><li><details><summary>Introduction to client-side frameworks</summary><ol><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Introduction\">Introduction to client-side frameworks</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Main_features\">Framework main features</a></li></ol></details></li><li><details><summary>React</summary><ol><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/React_getting_started\">Getting started with React</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/React_todo_list_beginning\">Beginning our React todo list</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/React_components\">Componentizing our React app</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/React_interactivity_events_state\">React interactivity: Events and state</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/React_interactivity_filtering_conditional_rendering\">React interactivity: Editing, filtering, conditional rendering</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/React_accessibility\">Accessibility in React</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/React_resources\">React resources</a></li></ol></details></li><li><details><summary>Ember</summary><ol><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Ember_getting_started\">Getting started with Ember</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Ember_structure_componentization\">Ember app structure and componentization</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Ember_interactivity_events_state\">Ember interactivity: Events, classes and state</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Ember_conditional_footer\">Ember Interactivity: Footer functionality, conditional rendering</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Ember_routing\">Routing in Ember</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Ember_resources\">Ember resources and troubleshooting</a></li></ol></details></li><li><details><summary>Vue</summary><ol><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Vue_getting_started\">Getting started with Vue</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Vue_first_component\">Creating our first Vue component</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Vue_rendering_lists\">Rendering a list of Vue components</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Vue_methods_events_models\">Adding a new todo form: Vue events, methods, and models</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Vue_styling\">Styling Vue components with CSS</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Vue_computed_properties\">Using Vue computed properties</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Vue_conditional_rendering\">Vue conditional rendering: editing existing todos</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Vue_refs_focus_management\">Vue refs and lifecycle methods for focus management</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Vue_resources\">Vue resources</a></li></ol></details></li><li><details><summary>Svelte</summary><ol><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Svelte_getting_started\">Getting started with Svelte</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Svelte_Todo_list_beginning\">Starting our Svelte to-do list app</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Svelte_variables_props\">Dynamic behavior in Svelte: working with variables and props</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Svelte_components\">Componentizing our Svelte app</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Svelte_reactivity_lifecycle_accessibility\">Advanced Svelte: Reactivity, lifecycle, accessibility</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Svelte_stores\">Working with Svelte stores</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Svelte_TypeScript\">TypeScript support in Svelte</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Svelte_deployment_next\">Deployment and next steps</a></li></ol></details></li><li><details><summary>Angular</summary><ol><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Angular_getting_started\">Getting started with Angular</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Angular_todo_list_beginning\">Beginning our Angular todo list app</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Angular_styling\">Styling our Angular app</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Angular_item_component\">Creating an item component</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Angular_filtering\">Filtering our to-do items</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Client-side_JavaScript_frameworks/Angular_building\">Building Angular applications and further resources</a></li></ol></details></li><li><details><summary>Git and GitHub</summary><ol><li><a href=\"/en-US/docs/Learn/Tools_and_testing/GitHub\">Git and GitHub</a></li></ol></details></li><li><details><summary>Cross browser testing</summary><ol><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Cross_browser_testing\">Cross browser testing</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Cross_browser_testing/Introduction\">Introduction to cross-browser testing</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Cross_browser_testing/Testing_strategies\">Strategies for carrying out testing</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Cross_browser_testing/HTML_and_CSS\">Handling common HTML and CSS problems</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Cross_browser_testing/JavaScript\">Handling common JavaScript problems</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Cross_browser_testing/Accessibility\">Handling common accessibility problems</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Cross_browser_testing/Feature_detection\">Implementing feature detection</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Cross_browser_testing/Automated_testing\">Introduction to automated testing</a></li><li><a href=\"/en-US/docs/Learn/Tools_and_testing/Cross_browser_testing/Your_own_automation_environment\">Setting up your own test automation environment</a></li></ol></details></li><li class=\"section\"><a href=\"/en-US/docs/Learn/Server-side\">Server-side website programming</a></li><li><details><summary>First steps</summary><ol><li><a href=\"/en-US/docs/Learn/Server-side/First_steps\">Server-side website programming first steps</a></li><li><a href=\"/en-US/docs/Learn/Server-side/First_steps/Introduction\">Introduction to the server side</a></li><li><a href=\"/en-US/docs/Learn/Server-side/First_steps/Client-Server_overview\">Client-Server Overview</a></li><li><a href=\"/en-US/docs/Learn/Server-side/First_steps/Web_frameworks\">Server-side web frameworks</a></li><li><a href=\"/en-US/docs/Learn/Server-side/First_steps/Website_security\">Website security</a></li></ol></details></li><li><details><summary>Django web framework (Python)</summary><ol><li><a href=\"/en-US/docs/Learn/Server-side/Django\">Django Web Framework (Python)</a></li><li><a href=\"/en-US/docs/Learn/Server-side/Django/Introduction\">Django introduction</a></li><li><a href=\"/en-US/docs/Learn/Server-side/Django/development_environment\">Setting up a Django development environment</a></li><li><a href=\"/en-US/docs/Learn/Server-side/Django/Tutorial_local_library_website\">Django Tutorial: The Local Library website</a></li><li><a href=\"/en-US/docs/Learn/Server-side/Django/skeleton_website\">Django Tutorial Part 2: Creating a skeleton website</a></li><li><a href=\"/en-US/docs/Learn/Server-side/Django/Models\">Django Tutorial Part 3: Using models</a></li><li><a href=\"/en-US/docs/Learn/Server-side/Django/Admin_site\">Django Tutorial Part 4: Django admin site</a></li><li><a href=\"/en-US/docs/Learn/Server-side/Django/Home_page\">Django Tutorial Part 5: Creating our home page</a></li><li><a href=\"/en-US/docs/Learn/Server-side/Django/Generic_views\">Django Tutorial Part 6: Generic list and detail views</a></li><li><a href=\"/en-US/docs/Learn/Server-side/Django/Sessions\">Django Tutorial Part 7: Sessions framework</a></li><li><a href=\"/en-US/docs/Learn/Server-side/Django/Authentication\">Django Tutorial Part 8: User authentication and permissions</a></li><li><a href=\"/en-US/docs/Learn/Server-side/Django/Forms\">Django Tutorial Part 9: Working with forms</a></li><li><a href=\"/en-US/docs/Learn/Server-side/Django/Testing\">Django Tutorial Part 10: Testing a Django web application</a></li><li><a href=\"/en-US/docs/Learn/Server-side/Django/Deployment\">Django Tutorial Part 11: Deploying Django to production</a></li><li><a href=\"/en-US/docs/Learn/Server-side/Django/web_application_security\">Django web application security</a></li><li><a href=\"/en-US/docs/Learn/Server-side/Django/django_assessment_blog\">Assessment: DIY Django mini blog</a></li></ol></details></li><li><details><summary>Express Web Framework (Node.js/JavaScript)</summary><ol><li><a href=\"/en-US/docs/Learn/Server-side/Express_Nodejs\">Express web framework (Node.js/JavaScript)</a></li><li><a href=\"/en-US/docs/Learn/Server-side/Express_Nodejs/Introduction\">Express/Node introduction</a></li><li><a href=\"/en-US/docs/Learn/Server-side/Express_Nodejs/development_environment\">Setting up a Node development environment</a></li><li><a href=\"/en-US/docs/Learn/Server-side/Express_Nodejs/Tutorial_local_library_website\">Express Tutorial: The Local Library website</a></li><li><a href=\"/en-US/docs/Learn/Server-side/Express_Nodejs/skeleton_website\">Express Tutorial Part 2: Creating a skeleton website</a></li><li><a href=\"/en-US/docs/Learn/Server-side/Express_Nodejs/mongoose\">Express Tutorial Part 3: Using a Database (with Mongoose)</a></li><li><a href=\"/en-US/docs/Learn/Server-side/Express_Nodejs/routes\">Express Tutorial Part 4: Routes and controllers</a></li><li><a href=\"/en-US/docs/Learn/Server-side/Express_Nodejs/Displaying_data\">Express Tutorial Part 5: Displaying library data</a></li><li><a href=\"/en-US/docs/Learn/Server-side/Express_Nodejs/forms\">Express Tutorial Part 6: Working with forms</a></li><li><a href=\"/en-US/docs/Learn/Server-side/Express_Nodejs/deployment\">Express Tutorial Part 7: Deploying to production</a></li></ol></details></li><li class=\"section\"><a href=\"/en-US/docs/Learn/Common_questions\">Further resources</a></li><li><details><summary>Common questions</summary><ol><li><a href=\"/en-US/docs/Learn/Common_questions\">Common questions</a></li><li><a href=\"/en-US/docs/Learn/HTML/Howto\">Use HTML to solve common problems</a></li><li><a href=\"/en-US/docs/Learn/CSS/Howto\">Use CSS to solve common problems</a></li><li><a href=\"/en-US/docs/Learn/JavaScript/Howto\">Solve common problems in your JavaScript code</a></li><li><a href=\"/en-US/docs/Learn/Common_questions/Web_mechanics\">Web mechanics</a></li><li><a href=\"/en-US/docs/Learn/Common_questions/Tools_and_setup\">Tools and setup</a></li><li><a href=\"/en-US/docs/Learn/Common_questions/Design_and_accessibility\">Design and accessibility</a></li></ol></details></li></ol>","sidebarMacro":"LearnSidebar","body":[{"type":"prose","value":{"id":null,"title":null,"isH3":false,"content":"<ul class=\"prev-next\">\n <li><a class=\"button secondary\" href=\"/en-US/docs/Learn/HTML/Multimedia_and_embedding/Video_and_audio_content\"><span class=\"button-wrap\"> Previous </span></a></li>\n <li><a class=\"button secondary\" href=\"/en-US/docs/Learn/HTML/Multimedia_and_embedding\"><span class=\"button-wrap\"> Overview: Multimedia and embedding</span></a></li>\n <li><a class=\"button secondary\" href=\"/en-US/docs/Learn/HTML/Multimedia_and_embedding/Adding_vector_graphics_to_the_Web\"><span class=\"button-wrap\"> Next </span></a></li>\n</ul>\n<p>By now you should really be getting the hang of embedding things into your web pages, including images, video and audio. At this point we'd like to take somewhat of a sideways step, looking at some elements that allow you to embed a wide variety of content types into your webpages: the <a href=\"/en-US/docs/Web/HTML/Element/iframe\"><code><iframe></code></a>, <a href=\"/en-US/docs/Web/HTML/Element/embed\"><code><embed></code></a> and <a href=\"/en-US/docs/Web/HTML/Element/object\"><code><object></code></a> elements. <code><iframe></code>s are for embedding other web pages, and the other two allow you to embed external resources such as PDF files.</p>\n<figure class=\"table-container\"><table>\n <tbody>\n <tr>\n <th scope=\"row\">Prerequisites:</th>\n <td>\n <a href=\"/en-US/docs/Learn/Getting_started_with_the_web/Installing_basic_software\">Basic software installed</a>, basic knowledge of\n <a href=\"/en-US/docs/Learn/Getting_started_with_the_web/Dealing_with_files\">working with files</a>, familiarity with HTML fundamentals (as covered in\n <a href=\"/en-US/docs/Learn/HTML/Introduction_to_HTML/Getting_started\">Getting started with HTML</a>) and the previous articles in this module.\n </td>\n </tr>\n <tr>\n <th scope=\"row\">Objective:</th>\n <td>\n To learn how to embed items into web pages using\n <a href=\"/en-US/docs/Web/HTML/Element/object\"><code><object></code></a>, <a href=\"/en-US/docs/Web/HTML/Element/embed\"><code><embed></code></a>, and\n <a href=\"/en-US/docs/Web/HTML/Element/iframe\"><code><iframe></code></a>, like PDF documents and other webpages.\n </td>\n </tr>\n </tbody>\n</table></figure>"}},{"type":"prose","value":{"id":"a_short_history_of_embedding","title":"A short history of embedding","isH3":false,"content":"<p>A long time ago on the Web, it was popular to use <strong>frames</strong> to create websites — small parts of a website stored in individual HTML pages. These were embedded in a master document called a <strong>frameset</strong>, which allowed you to specify the area on the screen that each frame filled, rather like sizing the columns and rows of a table. These were considered the height of coolness in the mid to late 90s, and there was evidence that having a webpage split up into smaller chunks like this was better for download speeds — especially noticeable with network connections being so slow back then. They did however have many problems, which far outweighed any positives as network speeds got faster, so you don't see them being used anymore.</p>\n<p>A little while later (late 90s, early 2000s), plugin technologies became very popular, such as <a href=\"/en-US/docs/Glossary/Java\">Java Applets</a> and <a href=\"/en-US/docs/Glossary/Adobe_Flash\">Flash</a> — these allowed web developers to embed rich content into webpages such as videos and animations, which just weren't available through HTML alone. Embedding these technologies was achieved through elements like <a href=\"/en-US/docs/Web/HTML/Element/object\"><code><object></code></a>, and the lesser-used <a href=\"/en-US/docs/Web/HTML/Element/embed\"><code><embed></code></a>, and they were very useful at the time. They have since fallen out of fashion due to many problems, including accessibility, security, file size, and more. These days major browsers have stopped supporting plugins such as Flash.</p>\n<p>Finally, the <a href=\"/en-US/docs/Web/HTML/Element/iframe\"><code><iframe></code></a> element appeared (along with other ways of embedding content, such as <a href=\"/en-US/docs/Web/HTML/Element/canvas\"><code><canvas></code></a>, <a href=\"/en-US/docs/Web/HTML/Element/video\"><code><video></code></a>, etc.) This provides a way to embed an entire web document inside another one, as if it were an <a href=\"/en-US/docs/Web/HTML/Element/img\"><code><img></code></a> or other such element, and is used regularly today.</p>\n<p>With the history lesson out of the way, let's move on and see how to use some of these.</p>"}},{"type":"prose","value":{"id":"active_learning_classic_embedding_uses","title":"Active learning: classic embedding uses","isH3":false,"content":"<p>In this article we are going to jump straight into an active learning section, to immediately give you a real idea of just what embedding technologies are useful for. The online world is very familiar with <a href=\"https://www.youtube.com/\" class=\"external\" target=\"_blank\">YouTube</a>, but many people don't know about some of the sharing facilities it has available. Let's look at how YouTube allows us to embed a video in any page we like using an <a href=\"/en-US/docs/Web/HTML/Element/iframe\"><code><iframe></code></a>.</p>\n<ol>\n <li>First, go to YouTube and find a video you like.</li>\n <li>Below the video, you'll find a <em>Share</em> button — select this to display the sharing options.</li>\n <li>Select the <em>Embed</em> button and you'll be given some <code><iframe></code> code — copy this.</li>\n <li>Insert it into the <em>Input</em> box below, and see what the result is in the <em>Output</em>.</li>\n</ol>\n<p>For bonus points, you could also try embedding a <a href=\"https://www.google.com/maps/\" class=\"external\" target=\"_blank\">Google Map</a> in the example:</p>\n<ol>\n <li>Go to Google Maps and find a map you like.</li>\n <li>Click on the \"Hamburger Menu\" (three horizontal lines) in the top left of the UI.</li>\n <li>Select the <em>Share or embed map</em> option.</li>\n <li>Select the Embed map option, which will give you some <code><iframe></code> code — copy this.</li>\n <li>Insert it into the <em>Input</em> box below, and see what the result is in the <em>Output</em>.</li>\n</ol>\n<p>If you make a mistake, you can always reset it using the <em>Reset</em> button. If you get really stuck, press the <em>Show solution</em> button to see an answer.</p>\n<div class=\"code-example\"><pre class=\"brush: html hidden notranslate\"><code><h2>Live output</h2>\n\n<div class=\"output\" style=\"min-height: 250px;\"></div>\n\n<h2>Editable code</h2>\n<p class=\"a11y-label\">\n Press Esc to move focus away from the code area (Tab inserts a tab character).\n</p>\n\n<textarea\n id=\"code\"\n class=\"input\"\n style=\"width: 95%;min-height: 100px;\"></textarea>\n\n<div class=\"playable-buttons\">\n <input id=\"reset\" type=\"button\" value=\"Reset\" />\n <input id=\"solution\" type=\"button\" value=\"Show solution\" />\n</div>\n</code></pre></div>\n<div class=\"code-example\"><pre class=\"brush: css hidden notranslate\"><code>html {\n font-family: sans-serif;\n}\n\nh2 {\n font-size: 16px;\n}\n\n.a11y-label {\n margin: 0;\n text-align: right;\n font-size: 0.7rem;\n width: 98%;\n}\n\nbody {\n margin: 10px;\n background: #f5f9fa;\n}\n</code></pre></div>\n<div class=\"code-example\"><pre class=\"brush: js hidden notranslate\"><code>const textarea = document.getElementById(\"code\");\nconst reset = document.getElementById(\"reset\");\nconst solution = document.getElementById(\"solution\");\nconst output = document.querySelector(\".output\");\nlet code = textarea.value;\nlet userEntry = textarea.value;\n\nfunction updateCode() {\n output.innerHTML = textarea.value;\n}\n\nreset.addEventListener(\"click\", function () {\n textarea.value = code;\n userEntry = textarea.value;\n solutionEntry = htmlSolution;\n solution.value = \"Show solution\";\n updateCode();\n});\n\nsolution.addEventListener(\"click\", function () {\n if (solution.value === \"Show solution\") {\n textarea.value = solutionEntry;\n solution.value = \"Hide solution\";\n } else {\n textarea.value = userEntry;\n solution.value = \"Show solution\";\n }\n updateCode();\n});\n\nconst htmlSolution =\n '<iframe width=\"420\" height=\"315\" src=\"https://www.youtube.com/embed/QH2-TGUlwu4\" frameborder=\"0\" allowfullscreen>\\n</iframe>\\n\\n<iframe src=\"https://www.google.com/maps/embed?pb=!1m18!1m12!1m3!1d37995.65748333395!2d-2.273568166412784!3d53.473310471916975!2m3!1f0!2f0!3f0!3m2!1i1024!2i768!4f13.1!3m3!1m2!1s0x487bae6c05743d3d%3A0xf82fddd1e49fc0a1!2sThe+Lowry!5e0!3m2!1sen!2suk!4v1518171785211\" width=\"600\" height=\"450\" frameborder=\"0\" style=\"border:0\" allowfullscreen>\\n</iframe>';\nlet solutionEntry = htmlSolution;\n\ntextarea.addEventListener(\"input\", updateCode);\nwindow.addEventListener(\"load\", updateCode);\n\n// stop tab key tabbing out of textarea and\n// make it write a tab at the caret position instead\n\ntextarea.onkeydown = function (e) {\n if (e.code === \"Tab\") {\n e.preventDefault();\n insertAtCaret(\"\\t\");\n }\n\n if (e.code === \"Escape\") {\n textarea.blur();\n }\n};\n\nfunction insertAtCaret(text) {\n const scrollPos = textarea.scrollTop;\n let caretPos = textarea.selectionStart;\n\n const front = textarea.value.substring(0, caretPos);\n const back = textarea.value.substring(\n textarea.selectionEnd,\n textarea.value.length,\n );\n textarea.value = front + text + back;\n caretPos += text.length;\n textarea.selectionStart = caretPos;\n textarea.selectionEnd = caretPos;\n textarea.focus();\n textarea.scrollTop = scrollPos;\n}\n\n// Update the saved userCode every time the user updates the text area code\n\ntextarea.onkeyup = function () {\n // We only want to save the state when the user code is being shown,\n // not the solution, so that solution is not saved over the user code\n if (solution.value === \"Show solution\") {\n userEntry = textarea.value;\n } else {\n solutionEntry = textarea.value;\n }\n\n updateCode();\n};\n</code></pre></div><div class=\"code-example\"><div class=\"example-header\"></div><iframe class=\"sample-code-frame\" title=\"Active learning classic embedding uses sample\" id=\"frame_active_learning_classic_embedding_uses\" width=\"700\" height=\"600\" src=\"about:blank\" data-live-path=\"/en-US/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies\" data-live-id=\"active_learning_classic_embedding_uses\" sandbox=\"allow-same-origin allow-scripts\" loading=\"lazy\"></iframe></div>"}},{"type":"prose","value":{"id":"iframes_in_detail","title":"iframes in detail","isH3":false,"content":"<p>So, that was easy and fun, right? <a href=\"/en-US/docs/Web/HTML/Element/iframe\"><code><iframe></code></a> elements are designed to allow you to embed other web documents into the current document. This is great for incorporating third-party content into your website that you might not have direct control over and don't want to have to implement your own version of — such as video from online video providers, commenting systems like <a href=\"https://disqus.com/\" class=\"external\" target=\"_blank\">Disqus</a>, maps from online map providers, advertising banners, etc. Even the live editable examples you've been using through this course are implemented using <code><iframe></code>s.</p>\n<p>\n Before diving into using <code><iframe></code> elements, there are some security concerns to be aware of.\n Say you wanted to include the MDN glossary on one of your web pages using the <a href=\"/en-US/docs/Web/HTML/Element/iframe\"><code><iframe></code></a> element, you might try something like the next code example.\n If you were to add the code below into one of your pages, you might be surprised to see an error message instead of the glossary page:\n</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">html</span></div><pre class=\"brush: html notranslate\"><code><head>\n <style>\n iframe {\n border: none;\n }\n </style>\n</head>\n<body>\n <iframe\n src=\"https://developer.mozilla.org/en-US/docs/Glossary\"\n width=\"100%\"\n height=\"500\"\n allowfullscreen\n sandbox>\n <p>\n <a href=\"/en-US/docs/Glossary\">\n Fallback link for browsers that don't support iframes\n </a>\n </p>\n </iframe>\n</body>\n</code></pre></div>\n<p>If you have a look at your browser's console, you'll see an error message like the following:</p>\n<pre class=\"brush: plain notranslate\">Refused to display 'https://developer.mozilla.org/' in a frame because it set 'X-Frame-Options' to 'deny'.\n</pre>\n<p>The <a href=\"#security_concerns\">Security</a> section below goes into more detail about why you see this error, but first, let's have a look at what our code is doing.</p>\n<p>The example includes the bare essentials needed to use an <code><iframe></code>:</p>\n<dl>\n <dt id=\"border_none\"><a href=\"/en-US/docs/Web/CSS/border\"><code>border: none</code></a></dt>\n <dd>\n <p>If used, the <code><iframe></code> is displayed without a surrounding border. Otherwise, by default, browsers display the <code><iframe></code> with a surrounding border (which is generally undesirable).</p>\n </dd>\n <dt id=\"allowfullscreen\"><a href=\"/en-US/docs/Web/HTML/Element/iframe#allowfullscreen\"><code>allowfullscreen</code></a></dt>\n <dd>\n <p>If set, the <code><iframe></code> is able to be placed in fullscreen mode using the <a href=\"/en-US/docs/Web/API/Fullscreen_API\">Fullscreen API</a> (somewhat beyond the scope of this article).</p>\n </dd>\n <dt id=\"src\"><a href=\"/en-US/docs/Web/HTML/Element/iframe#src\"><code>src</code></a></dt>\n <dd>\n <p>This attribute, as with <a href=\"/en-US/docs/Web/HTML/Element/video\"><code><video></code></a>/<a href=\"/en-US/docs/Web/HTML/Element/img\"><code><img></code></a>, contains a path pointing to the URL of the document to be embedded.</p>\n </dd>\n <dt id=\"width\"><a href=\"/en-US/docs/Web/HTML/Element/iframe#width\"><code>width</code></a> and <a href=\"/en-US/docs/Web/HTML/Element/iframe#height\"><code>height</code></a></dt>\n <dd>\n <p>These attributes specify the width and height you want the iframe to be.</p>\n </dd>\n <dt id=\"sandbox\"><a href=\"/en-US/docs/Web/HTML/Element/iframe#sandbox\"><code>sandbox</code></a></dt>\n <dd>\n <p>This attribute, which works in slightly more modern browsers than the rest of the <code><iframe></code> features (e.g. IE 10 and above) requests heightened security settings; we'll say more about this in the next section.</p>\n </dd>\n</dl>\n<div class=\"notecard note\">\n <p><strong>Note:</strong> In order to improve speed, it's a good idea to set the iframe's <code>src</code> attribute with JavaScript after the main content is done with loading. This makes your page usable sooner and decreases your official page load time (an important <a href=\"/en-US/docs/Glossary/SEO\">SEO</a> metric.)</p>\n</div>"}},{"type":"prose","value":{"id":"security_concerns","title":"Security concerns","isH3":true,"content":"<p>Above we mentioned security concerns — let's go into this in a bit more detail now. We are not expecting you to understand all of this content perfectly the first time; we just want to make you aware of this concern, and provide a reference to come back to as you get more experienced and start considering using <code><iframe></code>s in your experiments and work. Also, there is no need to be scared and not use <code><iframe></code>s — you just need to be careful. Read on…</p>\n<p>Browser makers and Web developers have learned the hard way that iframes are a common target (official term: <strong>attack vector</strong>) for bad people on the Web (often termed <strong>hackers</strong>, or more accurately, <strong>crackers</strong>) to attack if they are trying to maliciously modify your webpage, or trick people into doing something they don't want to do, such as reveal sensitive information like usernames and passwords. Because of this, spec engineers and browser developers have developed various security mechanisms for making <code><iframe></code>s more secure, and there are also best practices to consider — we'll cover some of these below.</p>\n<div class=\"notecard note\">\n <p><strong>Note:</strong> <a href=\"/en-US/docs/Glossary/Clickjacking\">Clickjacking</a> is one kind of common iframe attack where hackers embed an invisible iframe into your document (or embed your document into their own malicious website) and use it to capture users' interactions. This is a common way to mislead users or steal sensitive data.</p>\n</div>\n<p>A quick example first though — try loading the previous example we showed above into your browser — you can <a href=\"https://mdn.github.io/learning-area/html/multimedia-and-embedding/other-embedding-technologies/iframe-detail.html\" class=\"external\" target=\"_blank\">find it live on GitHub</a> (<a href=\"https://github.com/mdn/learning-area/blob/main/html/multimedia-and-embedding/other-embedding-technologies/iframe-detail.html\" class=\"external\" target=\"_blank\">see the source code</a> too.) Instead of the page you expected, you'll probably see some kind of message to the effect of \"I can't open this page\", and if you look at the <em>Console</em> in the <a href=\"/en-US/docs/Learn/Common_questions/Tools_and_setup/What_are_browser_developer_tools\">browser developer tools</a>, you'll see a message telling you why. In Firefox, you'll get told something like <em>The loading of \"<a href=\"/en-US/docs/Glossary\">https://developer.mozilla.org/en-US/docs/Glossary</a>\" in a frame is denied by \"X-Frame-Options\" directive set to \"DENY\"</em>. This is because the developers that built MDN have included a setting on the server that serves the website pages to disallow them from being embedded inside <code><iframe></code>s (see <a href=\"#configure_csp_directives\">Configure CSP directives</a>, below.) This makes sense — an entire MDN page doesn't really make sense to be embedded in other pages unless you want to do something like embed them on your site and claim them as your own — or attempt to steal data via <a href=\"/en-US/docs/Glossary/Clickjacking\">clickjacking</a>, which are both really bad things to do. Plus if everybody started to do this, all the additional bandwidth would start to cost Mozilla a lot of money.</p>\n<h4 id=\"only_embed_when_necessary\">Only embed when necessary</h4>\n<p>Sometimes it makes sense to embed third-party content — like youtube videos and maps — but you can save yourself a lot of headaches if you only embed third-party content when completely necessary. A good rule for web security is <em>\"You can never be too cautious. If you made it, double-check it anyway. If someone else made it, assume it's dangerous until proven otherwise.\"</em></p>\n<p>Besides security, you should also be aware of intellectual property issues. Most content is copyrighted, offline and online, even content you might not expect (for example, most images on <a href=\"https://commons.wikimedia.org/wiki/Main_Page\" class=\"external\" target=\"_blank\">Wikimedia Commons</a>). Never display content on your webpage unless you own it or the owners have given you written, unequivocal permission. Penalties for copyright infringement are severe. Again, you can never be too cautious.</p>\n<p>If the content is licensed, you must obey the license terms. For example, the content on MDN is <a href=\"/en-US/docs/MDN/Writing_guidelines/Attrib_copyright_license#documentation\">licensed under CC-BY-SA</a>. That means, you must <a href=\"https://wiki.creativecommons.org/wiki/Best_practices_for_attribution\" class=\"external\" target=\"_blank\">credit us properly</a> when you quote our content, even if you make substantial changes.</p>\n<h4 id=\"use_https\">Use HTTPS</h4>\n<p><a href=\"/en-US/docs/Glossary/HTTPS\">HTTPS</a> is the encrypted version of <a href=\"/en-US/docs/Glossary/HTTP\">HTTP</a>. You should serve your websites using HTTPS whenever possible:</p>\n<ol>\n <li>HTTPS reduces the chance that remote content has been tampered with in transit.</li>\n <li>HTTPS prevents embedded content from accessing content in your parent document, and vice versa.</li>\n</ol>\n<p>HTTPS-enabling your site requires a special security certificate to be installed. Many hosting providers offer HTTPS-enabled hosting without you needing to do any setup on your own to put a certificate in place. But if you <em>do</em> need to set up HTTPS support for your site on your own, <a href=\"https://letsencrypt.org/\" class=\"external\" target=\"_blank\">Let's Encrypt</a> provides tools and instructions you can use for automatically creating and installing the necessary certificate — with built-in support for the most widely-used web servers, including the Apache web server, Nginx, and others. The Let's Encrypt tooling is designed to make the process as easy as possible, so there's really no good reason to avoid using it or other available means to HTTPS-enable your site.</p>\n<div class=\"notecard note\">\n <p>\n <strong>Note:</strong> <a href=\"/en-US/docs/Learn/Common_questions/Tools_and_setup/Using_GitHub_pages\">GitHub pages</a> allow content to be served via HTTPS by default.\n If you are using a different hosting provider you should check what support they provide for serving content with HTTPS.\n </p>\n</div>\n<h4 id=\"always_use_the_sandbox_attribute\">Always use the <code>sandbox</code> attribute</h4>\n<p>You want to give attackers as little power as you can to do bad things on your website, therefore you should give embedded content <em>only the permissions needed for doing its job.</em> Of course, this applies to your own content, too. A container for code where it can be used appropriately — or for testing — but can't cause any harm to the rest of the codebase (either accidental or malicious) is called a <a href=\"https://en.wikipedia.org/wiki/Sandbox_(computer_security)\" class=\"external\" target=\"_blank\">sandbox</a>.</p>\n<p>Content that's not sandboxed may be able to execute JavaScript, submit forms, trigger popup windows, etc. By default, you should impose all available restrictions by using the <code>sandbox</code> attribute with no parameters, as shown in our previous example.</p>\n<p>If absolutely required, you can add permissions back one by one (inside the <code>sandbox=\"\"</code> attribute value) — see the <a href=\"/en-US/docs/Web/HTML/Element/iframe#sandbox\"><code>sandbox</code></a> reference entry for all the available options. One important note is that you should <em>never</em> add both <code>allow-scripts</code> and <code>allow-same-origin</code> to your <code>sandbox</code> attribute — in that case, the embedded content could bypass the <a href=\"/en-US/docs/Glossary/Same-origin_policy\">Same-origin policy</a> that stops sites from executing scripts, and use JavaScript to turn off sandboxing altogether.</p>\n<div class=\"notecard note\">\n <p><strong>Note:</strong> Sandboxing provides no protection if attackers can fool people into visiting malicious content directly (outside an <code>iframe</code>). If there's any chance that certain content may be malicious (e.g., user-generated content), please serve it from a different <a href=\"/en-US/docs/Glossary/Domain\">domain</a> to your main site.</p>\n</div>\n<h4 id=\"configure_csp_directives\">Configure CSP directives</h4>\n<p><a href=\"/en-US/docs/Glossary/CSP\">CSP</a> stands for <strong><a href=\"/en-US/docs/Web/HTTP/CSP\">content security policy</a></strong> and provides <a href=\"/en-US/docs/Web/HTTP/Headers/Content-Security-Policy\">a set of HTTP Headers</a> (metadata sent along with your web pages when they are served from a web server) designed to improve the security of your HTML document. When it comes to securing <code><iframe></code>s, you can <em><a href=\"/en-US/docs/Web/HTTP/Headers/X-Frame-Options\">configure your server to send an appropriate <code>X-Frame-Options</code> header.</a></em> This can prevent other websites from embedding your content in their web pages (which would enable <a href=\"/en-US/docs/Glossary/Clickjacking\">clickjacking</a> and a host of other attacks), which is exactly what the MDN developers have done, as we saw earlier on.</p>\n<div class=\"notecard note\">\n <p><strong>Note:</strong> You can read Frederik Braun's post <a href=\"https://blog.mozilla.org/security/2013/12/12/on-the-x-frame-options-security-header/\" class=\"external\" target=\"_blank\">On the X-Frame-Options Security Header</a> for more background information on this topic. Obviously, it's rather out of scope for a full explanation in this article.</p>\n</div>"}},{"type":"prose","value":{"id":"the_embed_and_object_elements","title":"The <embed> and <object> elements","isH3":false,"content":"<p>The <a href=\"/en-US/docs/Web/HTML/Element/embed\"><code><embed></code></a> and <a href=\"/en-US/docs/Web/HTML/Element/object\"><code><object></code></a> elements serve a different function to <a href=\"/en-US/docs/Web/HTML/Element/iframe\"><code><iframe></code></a> — these elements are general purpose embedding tools for embedding external content, such as PDFs.</p>\n<p>However, you are unlikely to use these elements very much. If you need to display PDFs, it's usually better to link to them, rather than embedding them in the page.</p>\n<p>Historically these elements have also been used for embedding content handled by browser <a href=\"/en-US/docs/Glossary/Plugin\">plugins</a> such as <a href=\"/en-US/docs/Glossary/Adobe_Flash\">Adobe Flash</a>, but this technology is now obsolete and is not supported by modern browsers.</p>\n<p>If you find yourself needing to embed plugin content, this is the kind of information you'll need, at a minimum:</p>\n<figure class=\"table-container\"><table class=\"standard-table no-markdown\">\n <thead>\n <tr>\n <th scope=\"col\"></th>\n <th scope=\"col\"><a href=\"/en-US/docs/Web/HTML/Element/embed\"><code><embed></code></a></th>\n <th scope=\"col\"><a href=\"/en-US/docs/Web/HTML/Element/object\"><code><object></code></a></th>\n </tr>\n </thead>\n <tbody>\n <tr>\n <td><a href=\"/en-US/docs/Glossary/URL\">URL</a> of the embedded content</td>\n <td><a href=\"/en-US/docs/Web/HTML/Element/embed#src\"><code>src</code></a></td>\n <td><a href=\"/en-US/docs/Web/HTML/Element/object#data\"><code>data</code></a></td>\n </tr>\n <tr>\n <td>\n <em>Accurate </em><a href=\"/en-US/docs/Glossary/MIME_type\">media type</a>\n of the embedded content\n </td>\n <td><a href=\"/en-US/docs/Web/HTML/Element/embed#type\"><code>type</code></a></td>\n <td><a href=\"/en-US/docs/Web/HTML/Element/object#type\"><code>type</code></a></td>\n </tr>\n <tr>\n <td>Height and width (in CSS pixels) of the box controlled by the plugin</td>\n <td><a href=\"/en-US/docs/Web/HTML/Element/embed#height\"><code>height</code></a><br><a href=\"/en-US/docs/Web/HTML/Element/embed#width\"><code>width</code></a></td>\n <td><a href=\"/en-US/docs/Web/HTML/Element/object#height\"><code>height</code></a><br><a href=\"/en-US/docs/Web/HTML/Element/object#width\"><code>width</code></a></td>\n </tr>\n <tr>\n <td>Independent HTML content as a fallback for an unavailable resource</td>\n <td>Not supported (<code><noembed></code> is obsolete)</td>\n <td>\n Contained within the opening and closing\n <code><object></code> tags\n </td>\n </tr>\n </tbody>\n</table></figure>\n<p>Let's look at an <code><object></code> example that embeds a PDF into a page (see the <a href=\"https://mdn.github.io/learning-area/html/multimedia-and-embedding/other-embedding-technologies/object-pdf.html\" class=\"external\" target=\"_blank\">live example</a> and the <a href=\"https://github.com/mdn/learning-area/blob/main/html/multimedia-and-embedding/other-embedding-technologies/object-pdf.html\" class=\"external\" target=\"_blank\">source code</a>):</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">html</span></div><pre class=\"brush: html notranslate\"><code><object data=\"my-pdf.pdf\" type=\"application/pdf\" width=\"800\" height=\"1200\">\n <p>\n You don't have a PDF plugin, but you can\n <a href=\"my-pdf.pdf\">download the PDF file. </a>\n </p>\n</object>\n</code></pre></div>\n<p>PDFs were a necessary stepping stone between paper and digital, but they pose many <a href=\"https://webaim.org/techniques/acrobat/acrobat\" class=\"external\" target=\"_blank\">accessibility challenges</a> and can be hard to read on small screens. They do still tend to be popular in some circles, but it is much better to link to them so they can be downloaded or read on a separate page, rather than embedding them in a webpage.</p>"}},{"type":"prose","value":{"id":"test_your_skills!","title":"Test your skills!","isH3":false,"content":"<p>You've reached the end of this article, but can you remember the most important information? You can find some further tests to verify that you've retained this information before you move on — see <a href=\"/en-US/docs/Learn/HTML/Multimedia_and_embedding/Video_and_audio_content/Test_your_skills:_Multimedia_and_embedding\">Test your skills: Multimedia and embedding</a>.</p>"}},{"type":"prose","value":{"id":"summary","title":"Summary","isH3":false,"content":"<p>The topic of embedding other content in web documents can quickly become very complex, so in this article, we've tried to introduce it in a simple, familiar way that will immediately seem relevant, while still hinting at some of the more advanced features of the involved technologies. To start with, you are unlikely to use embedding for much beyond including third-party content like maps and videos on your pages. As you become more experienced, however, you are likely to start finding more uses for them.</p>\n<p>There are many other technologies that involve embedding external content besides the ones we discussed here. We saw some in earlier articles, such as <a href=\"/en-US/docs/Web/HTML/Element/video\"><code><video></code></a>, <a href=\"/en-US/docs/Web/HTML/Element/audio\"><code><audio></code></a>, and <a href=\"/en-US/docs/Web/HTML/Element/img\"><code><img></code></a>, but there are others to discover, such as <a href=\"/en-US/docs/Web/HTML/Element/canvas\"><code><canvas></code></a> for JavaScript-generated 2D and 3D graphics, and <a href=\"/en-US/docs/Web/SVG/Element/svg\"><code><svg></code></a> for embedding vector graphics. We'll look at <a href=\"/en-US/docs/Web/SVG\">SVG</a> in the next article of the module.</p><ul class=\"prev-next\">\n <li><a class=\"button secondary\" href=\"/en-US/docs/Learn/HTML/Multimedia_and_embedding/Video_and_audio_content\"><span class=\"button-wrap\"> Previous </span></a></li>\n <li><a class=\"button secondary\" href=\"/en-US/docs/Learn/HTML/Multimedia_and_embedding\"><span class=\"button-wrap\"> Overview: Multimedia and embedding</span></a></li>\n <li><a class=\"button secondary\" href=\"/en-US/docs/Learn/HTML/Multimedia_and_embedding/Adding_vector_graphics_to_the_Web\"><span class=\"button-wrap\"> Next </span></a></li>\n</ul>"}}],"toc":[{"text":"A short history of embedding","id":"a_short_history_of_embedding"},{"text":"Active learning: classic embedding uses","id":"active_learning_classic_embedding_uses"},{"text":"iframes in detail","id":"iframes_in_detail"},{"text":"The <embed> and <object> elements","id":"the_embed_and_object_elements"},{"text":"Test your skills!","id":"test_your_skills!"},{"text":"Summary","id":"summary"}],"summary":"The topic of embedding other content in web documents can quickly become very complex, so in this article, we've tried to introduce it in a simple, familiar way that will immediately seem relevant, while still hinting at some of the more advanced features of the involved technologies. To start with, you are unlikely to use embedding for much beyond including third-party content like maps and videos on your pages. As you become more experienced, however, you are likely to start finding more uses for them.","popularity":0.0274,"modified":"2024-10-25T00:08:46.000Z","other_translations":[{"locale":"de","title":"Von Objekt zu iframe — andere Einbettungstechnologien","native":"Deutsch"},{"locale":"es","title":"Desde object hasta iframe - otras tecnologías de incrustación","native":"Español"},{"locale":"fr","title":"Des objets aux iframes — autres techniques d'intégration","native":"Français"},{"locale":"ja","title":"object から iframe まで — その他の埋め込み技術","native":"日本語"},{"locale":"ko","title":"<object> 로부터 <iframe>까지 — 기타 임베딩 기술","native":"한국어"},{"locale":"pt-BR","title":"Do objeto ao iframe - outras tecnologias de incorporação","native":"Português (do Brasil)"},{"locale":"ru","title":"От <object> к <iframe> - другие технологии внедрения","native":"Русский"},{"locale":"zh-CN","title":"从 object 到 iframe——其他嵌入技术","native":"中文 (简体)"}],"pageType":"learn-module-chapter","source":{"folder":"en-us/learn/html/multimedia_and_embedding/other_embedding_technologies","github_url":"https://github.com/mdn/content/blob/main/files/en-us/learn/html/multimedia_and_embedding/other_embedding_technologies/index.md","last_commit_url":"https://github.com/mdn/content/commit/baac7f2a43813a7930ff97b11d9c38b413f97c78","filename":"index.md"},"short_title":"From object to iframe — other embedding technologies","parents":[{"uri":"/en-US/docs/Learn","title":"Guides"},{"uri":"/en-US/docs/Learn/HTML","title":"HTML"},{"uri":"/en-US/docs/Learn/HTML/Multimedia_and_embedding","title":"Multimedia and embedding"},{"uri":"/en-US/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies","title":"From object to iframe — other embedding technologies"}],"pageTitle":"From object to iframe — other embedding technologies - Learn web development | MDN","noIndexing":false}}</script></body></html>