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><thead> - HTML（超文本标记语言） | MDN</title><link rel="alternate" title="<thead>: Das Table Head Element" href="https://developer.mozilla.org/de/docs/Web/HTML/Element/thead" hrefLang="de"/><link rel="alternate" title="<thead>: The Table Head element" href="https://developer.mozilla.org/en-US/docs/Web/HTML/Element/thead" hrefLang="en"/><link rel="alternate" title="<thead>" href="https://developer.mozilla.org/fr/docs/Web/HTML/Element/thead" hrefLang="fr"/><link rel="alternate" title="<thead>: 表ヘッダー要素" href="https://developer.mozilla.org/ja/docs/Web/HTML/Element/thead" hrefLang="ja"/><link rel="alternate" title="<thead>: 표 머릿글 요소" href="https://developer.mozilla.org/ko/docs/Web/HTML/Element/thead" hrefLang="ko"/><link rel="alternate" title="<thead>" href="https://developer.mozilla.org/zh-CN/docs/Web/HTML/Element/thead" hrefLang="zh"/><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="HTML 的 <thead> 元素定义了一组定义表格的列头的行。"/><meta property="og:url" content="https://developer.mozilla.org/zh-CN/docs/Web/HTML/Element/thead"/><meta property="og:title" content="<thead> - HTML（超文本标记语言） | MDN"/><meta property="og:type" content="website"/><meta property="og:locale" content="zh_CN"/><meta property="og:description" content="HTML 的 <thead> 元素定义了一组定义表格的列头的行。"/><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/zh-CN/docs/Web/HTML/Element/thead"/><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.9722bf44.js"></script><link href="/static/css/main.27d5b2a8.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="/zh-CN/" 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 active"><button type="button" id="references-button" class="top-level-entry menu-toggle" aria-controls="references-menu" aria-expanded="false">References</button><a href="/zh-CN/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="/zh-CN/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="/zh-CN/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="/zh-CN/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="/zh-CN/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="/zh-CN/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="/zh-CN/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="/zh-CN/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="/zh-CN/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 "><button type="button" id="guides-button" class="top-level-entry menu-toggle" aria-controls="guides-menu" aria-expanded="false">Guides</button><a href="/zh-CN/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="/zh-CN/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="/zh-CN/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="/zh-CN/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="/zh-CN/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="/zh-CN/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="/zh-CN/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="/zh-CN/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="/zh-CN/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="/zh-CN/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="/zh-CN/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="/zh-CN/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="/zh-CN/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=%2Fzh-CN%2Fdocs%2FWeb%2FHTML%2FElement%2Fthead" class="login-link" rel="nofollow">Log in</a></li><li><a href="/users/fxa/login/authenticate/?next=%2Fzh-CN%2Fdocs%2FWeb%2FHTML%2FElement%2Fthead" 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="/zh-CN/docs/Web" class="breadcrumb" property="item" typeof="WebPage"><span property="name">面向开发者的 Web 技术</span></a><meta property="position" content="1"/></li><li property="itemListElement" typeof="ListItem"><a href="/zh-CN/docs/Web/HTML" class="breadcrumb" property="item" typeof="WebPage"><span property="name">HTML（超文本标记语言）</span></a><meta property="position" content="2"/></li><li property="itemListElement" typeof="ListItem"><a href="/zh-CN/docs/Web/HTML/Element" class="breadcrumb" property="item" typeof="WebPage"><span property="name">HTML 元素参考</span></a><meta property="position" content="3"/></li><li property="itemListElement" typeof="ListItem"><a href="/zh-CN/docs/Web/HTML/Element/thead" class="breadcrumb-current-page" property="item" typeof="WebPage"><span property="name"><thead></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>中文 (简体)</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/Web/HTML/Element/thead" 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="en-US" href="/en-US/docs/Web/HTML/Element/thead" class="button submenu-item"><span>English (US)</span></a></li><li class=" "><a data-locale="fr" href="/fr/docs/Web/HTML/Element/thead" class="button submenu-item"><span>Français</span></a></li><li class=" "><a data-locale="ja" href="/ja/docs/Web/HTML/Element/thead" class="button submenu-item"><span>日本語</span></a></li><li class=" "><a data-locale="ko" href="/ko/docs/Web/HTML/Element/thead" class="button submenu-item"><span>한국어</span></a></li></ul></div></div></li></ul></div></div></div></div><div class="container"><div class="notecard localized-content-note"><p><a href="/zh-CN/docs/MDN/Community/Contributing/Translated_content#活跃语言">此页面由社区从英文翻译而来。了解更多并加入 MDN Web Docs 社区。</a></p></div></div><div class="main-wrapper"><div class="sidebar-container"><aside id="sidebar-quicklinks" class="sidebar" data-macro="HTMLSidebar"><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">在本文中</h2></header><ul class="document-toc-list"><li class="document-toc-item "><a class="document-toc-link" href="#尝试一下">尝试一下</a></li><li class="document-toc-item "><a class="document-toc-link" href="#属性">属性</a></li><li class="document-toc-item "><a class="document-toc-link" href="#示例">示例</a></li><li class="document-toc-item "><a class="document-toc-link" href="#规范">规范</a></li><li class="document-toc-item "><a class="document-toc-link" href="#浏览器兼容性">浏览器兼容性</a></li><li class="document-toc-item "><a class="document-toc-link" href="#参见">参见</a></li></ul></section></div></div><div class="sidebar-body"> <ol> <li class="section"><a href="/zh-CN/docs/Web/HTML">HTML</a></li> <li class="section"><a href="/zh-CN/docs/Learn/HTML">教程</a></li> <li><a href="/zh-CN/docs/Learn/Getting_started_with_the_web/HTML_basics">HTML 基础</a></li> <li class="toggle"> <details> <summary>HTML 介绍</summary> <ol> <li><a href="/zh-CN/docs/Learn/HTML/Introduction_to_HTML">HTML 概述</a></li> <li><a href="/zh-CN/docs/Learn/HTML/Introduction_to_HTML/Getting_started">开始学习 HTML</a></li> <li><a href="/zh-CN/docs/Learn/HTML/Introduction_to_HTML/The_head_metadata_in_HTML">head 标签里面有什么？HTML 中的元数据</a></li> <li><a href="/zh-CN/docs/Learn/HTML/Introduction_to_HTML/HTML_text_fundamentals">HTML 文本基础</a></li> <li><a href="/zh-CN/docs/Learn/HTML/Introduction_to_HTML/Creating_hyperlinks">建立超链接</a></li> <li><a href="/zh-CN/docs/Learn/HTML/Introduction_to_HTML/Advanced_text_formatting">高级文本格式</a></li> <li><a href="/zh-CN/docs/Learn/HTML/Introduction_to_HTML/Document_and_website_structure">文档和网站架构</a></li> <li><a href="/zh-CN/docs/Learn/HTML/Introduction_to_HTML/Debugging_HTML">HTML 调试</a></li> <li><a href="/zh-CN/docs/Learn/HTML/Introduction_to_HTML/Marking_up_a_letter">测验：标记信件</a></li> <li><a href="/zh-CN/docs/Learn/HTML/Introduction_to_HTML/Structuring_a_page_of_content">测验：构建网页内容</a></li> </ol> </details> </li> <li class="toggle"> <details> <summary>多媒体与嵌入</summary> <ol> <li><a href="/zh-CN/docs/Learn/HTML/Multimedia_and_embedding">多媒体与嵌入概述</a></li> <li><a href="/zh-CN/docs/Learn/HTML/Multimedia_and_embedding/Images_in_HTML">HTML 中的图片</a></li> <li><a href="/zh-CN/docs/Learn/HTML/Multimedia_and_embedding/Video_and_audio_content">视频和音频内容</a></li> <li><a href="/zh-CN/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies">从 object 到 iframe——其他嵌入技术</a></li> <li><a href="/zh-CN/docs/Learn/HTML/Multimedia_and_embedding/Adding_vector_graphics_to_the_Web">为 web 新增矢量图</a></li> <li><a href="/zh-CN/docs/Learn/HTML/Multimedia_and_embedding/Responsive_images">响应式图片</a></li> <li><a href="/zh-CN/docs/Learn/HTML/Multimedia_and_embedding/Mozilla_splash_page">测验：Mozilla 醒目页面</a></li> </ol> </details> </li> <li class="toggle"> <details> <summary>HTML 表格</summary> <ol> <li><a href="/zh-CN/docs/Learn/HTML/Tables">HTML 表格概述</a></li> <li><a href="/zh-CN/docs/Learn/HTML/Tables/Basics">HTML 表格基础</a></li> <li><a href="/zh-CN/docs/Learn/HTML/Tables/Advanced">HTML 高级表格特性和无障碍</a></li> <li><a href="/zh-CN/docs/Learn/HTML/Tables/Structuring_planet_data">测验：构建行星数据</a></li> </ol> </details> </li> <li class="section"><a href="/zh-CN/docs/Web/HTML/Reference">参考：</a></li> <li class="toggle"> <details open=""> <summary>HTML 元素</summary> <ol><li><a href="/zh-CN/docs/Web/HTML/Element/a"><code><a></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/abbr"><code><abbr></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/acronym"><code><acronym></code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTML/Element/address"><code><address></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/area"><code><area></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/article"><code><article></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/aside"><code><aside></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/audio"><code><audio></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/b"><code><b></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/base"><code><base></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/bdi"><code><bdi></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/bdo"><code><bdo></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/big"><code><big></code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTML/Element/blockquote"><code><blockquote></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/body"><code><body></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/br"><code><br></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/button"><code><button></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/canvas"><code><canvas></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/caption"><code><caption></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/center"><code><center></code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTML/Element/cite"><code><cite></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/code"><code><code></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/col"><code><col></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/colgroup"><code><colgroup></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/data"><code><data></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/datalist"><code><datalist></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/dd"><code><dd></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/del"><code><del></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/details"><code><details></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/dfn"><code><dfn></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/dialog"><code><dialog></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/dir"><code><dir></code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTML/Element/div"><code><div></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/dl"><code><dl></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/dt"><code><dt></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/em"><code><em></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/embed"><code><embed></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/fencedframe"><code><fencedframe></code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTML/Element/fieldset"><code><fieldset></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/figcaption"><code><figcaption></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/figure"><code><figure></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/font"><code><font></code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTML/Element/footer"><code><footer></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/form"><code>form</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/frame"><code><frame></code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTML/Element/frameset"><code><frameset></code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTML/Element/Heading_Elements"><code><h1></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/head"><code><head></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/header"><code><header></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/hgroup"><code><hgroup></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/hr"><code><hr></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/html"><code><html></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/i"><code><i></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/iframe"><code><iframe></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/img"><code><img></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/input"><code><input></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/ins"><code><ins></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/kbd"><code><kbd></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/label"><code><label></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/legend"><code><legend></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/li"><code><li></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/link"><code><link></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/main"><code><main></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/map"><code><map></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/mark"><code><mark></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/marquee"><code><marquee></code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTML/Element/menu"><code><menu></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/meta"><code><meta></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/meter"><code><meter></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/nav"><code><nav></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/nobr"><code><nobr></code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTML/Element/noembed"><code><noembed></code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTML/Element/noframes"><code><noframes></code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTML/Element/noscript"><code><noscript></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/object"><code><object></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/ol"><code><ol></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/optgroup"><code><optgroup></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/option"><code><option></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/output"><code><output></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/p"><code><p></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/param"><code><param></code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTML/Element/picture"><code><picture></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/plaintext"><code><plaintext></code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTML/Element/portal"><code><portal></code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTML/Element/pre"><code><pre></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/progress"><code><progress></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/q"><code><q></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/rb"><code><rb></code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTML/Element/rp"><code><rp></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/rt"><code><rt></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/rtc"><code><rtc></code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTML/Element/ruby"><code><ruby></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/s"><code><s></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/samp"><code><samp></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/script"><code><script></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/search"><code><search></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/section"><code><section></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/select"><code><select></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/slot"><code><slot></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/small"><code><small></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/source"><code><source></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/span"><code><span></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/strike"><code><strike></code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTML/Element/strong"><code><strong></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/style"><code><style></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/sub"><code><sub></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/summary"><code><summary></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/sup"><code><sup></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/table"><code><table></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/tbody"><code><tbody></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/td"><code><td></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/template"><code><template></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/textarea"><code><textarea></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/tfoot"><code><tfoot></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/th"><code><th></code></a></li><li><em><a href="/zh-CN/docs/Web/HTML/Element/thead" aria-current="page"><code><thead></code></a></em></li><li><a href="/zh-CN/docs/Web/HTML/Element/time"><code><time></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/title"><code><title></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/tr"><code><tr></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/track"><code><track></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/tt"><code><tt></code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTML/Element/u"><code><u></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/ul"><code><ul></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/var"><code><var></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/video"><code><video></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/wbr"><code><wbr></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/xmp"><code><xmp></code></a><abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></li></ol> </details> </li> <li class="toggle"> <details> <summary>全局属性</summary> <ol><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/accesskey"><code>accesskey</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/anchor"><code>anchor</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr><abbr class="icon icon-nonstandard" title="非标准。请在使用前检查跨浏览器支持。"> <span class="visually-hidden">非标准</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/autocapitalize"><code>autocapitalize</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/autocorrect"><code>autocorrect</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/autofocus"><code>autofocus</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/class"><code>class</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/contenteditable"><code>contenteditable</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/data-*"><code>data-*</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/dir"><code>dir</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/draggable"><code>draggable</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/enterkeyhint"><code>enterkeyhint</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/exportparts"><code>exportparts</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/hidden"><code>hidden</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/id"><code>id</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/inert"><code>inert</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/inputmode"><code>inputmode</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/is"><code>is</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/itemid"><code>itemid</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/itemprop"><code>itemprop</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/itemref"><code>itemref</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/itemscope"><code>itemscope</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/itemtype"><code>itemtype</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/lang"><code>lang</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/nonce"><code>nonce</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/part"><code>part</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/popover"><code>popover</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/slot"><code>slot</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/spellcheck"><code>spellcheck</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/style"><code>style</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/tabindex"><code>tabindex</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/title"><code>title</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/translate"><code>translate</code></a></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/virtualkeyboardpolicy"><code>virtualkeyboardpolicy</code></a><abbr class="icon icon-experimental" title="实验性。预期行为可能会在未来发生变更。"> <span class="visually-hidden">实验性</span> </abbr></li><li><a href="/zh-CN/docs/Web/HTML/Global_attributes/writingsuggestions"><code>writingsuggestions</code></a></li></ol> </details> </li> <li class="toggle"> <details> <summary>属性</summary> <ol> <li><a href="/zh-CN/docs/Web/HTML/Attributes/accept">accept</a></li> <li><a href="/zh-CN/docs/Web/HTML/Attributes/autocomplete">autocomplete</a></li> <li><a href="/zh-CN/docs/Web/HTML/Attributes/capture">capture</a></li> <li><a href="/zh-CN/docs/Web/HTML/Attributes/crossorigin">crossorigin</a></li> <li><a class="only-in-en-us" title="此页面目前仅提供英文版本" href="/en-US/docs/Web/HTML/Attributes/dirname">dirname</a></li> <li><a href="/zh-CN/docs/Web/HTML/Attributes/disabled">disabled</a></li> <li><a class="only-in-en-us" title="此页面目前仅提供英文版本" href="/en-US/docs/Web/HTML/Attributes/elementtiming">elementtiming</a></li> <li><a href="/zh-CN/docs/Web/HTML/Attributes/for">for</a></li> <li><a href="/zh-CN/docs/Web/HTML/Attributes/max">max</a></li> <li><a href="/zh-CN/docs/Web/HTML/Attributes/maxlength">maxlength</a></li> <li><a href="/zh-CN/docs/Web/HTML/Attributes/min">min</a></li> <li><a class="only-in-en-us" title="此页面目前仅提供英文版本" href="/en-US/docs/Web/HTML/Attributes/minlength">minlength</a></li> <li><a href="/zh-CN/docs/Web/HTML/Attributes/multiple">multiple</a></li> <li><a href="/zh-CN/docs/Web/HTML/Attributes/pattern">pattern</a></li> <li><a href="/zh-CN/docs/Web/HTML/Attributes/placeholder">placeholder</a></li> <li><a href="/zh-CN/docs/Web/HTML/Attributes/readonly">readonly</a></li> <li><a href="/zh-CN/docs/Web/HTML/Attributes/rel">rel</a></li> <li><a href="/zh-CN/docs/Web/HTML/Attributes/required">required</a></li> <li><a href="/zh-CN/docs/Web/HTML/Attributes/size">size</a></li> <li><a href="/zh-CN/docs/Web/HTML/Attributes/step">step</a></li> </ol> </details> </li> <li class="toggle"> <details> <summary><code><input></code> 类型</summary> <ol><li><a href="/zh-CN/docs/Web/HTML/Element/input/button"><code><input type="button"></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/input/checkbox"><code><input type="checkbox"></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/input/color"><code><input type="color"></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/input/date"><code><input type="date"></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/input/datetime-local"><code><input type="datetime-local"></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/input/email"><code><input type="email"></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/input/file"><code><input type="file"></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/input/hidden"><code><input type="hidden"></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/input/image"><code><input type="image"></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/input/month"><code><input type="month"></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/input/number"><code><input type="number"></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/input/password"><code><input type="password"></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/input/radio"><code><input type="radio"></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/input/range"><code><input type="range"></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/input/reset"><code><input type="reset"></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/input/search"><code><input type="search"></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/input/submit"><code><input type="submit"></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/input/tel"><code><input type="tel"></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/input/text"><code><input type="text"></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/input/time"><code><input type="time"></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/input/url"><code><input type="url"></code></a></li><li><a href="/zh-CN/docs/Web/HTML/Element/input/week"><code><input type="week"></code></a></li></ol> </details> </li> <li class="section no-link">指南：</li> <li> <ol> <li><a href="/zh-CN/docs/Web/HTML/Content_categories">内容分类</a></li> <li><a href="/zh-CN/docs/Glossary/Block-level_content">块级元素</a></li> <li><a href="/zh-CN/docs/Glossary/Inline-level_content">行级元素</a></li> <li><a href="/zh-CN/docs/Web/HTML/Quirks_Mode_and_Standards_Mode">怪异模式和标准模式</a></li> <li><a href="/zh-CN/docs/Web/HTML/Date_and_time_formats">HTML 中使用的日期与时间格式</a></li> <li><a href="/zh-CN/docs/Web/HTML/Constraint_validation">约束验证</a></li> <li><a href="/zh-CN/docs/Web/HTML/Microdata">微数据</a></li> <li><a href="/zh-CN/docs/Web/HTML/microformats">微格式</a></li> <li><a href="/zh-CN/docs/Web/HTML/Viewport_meta_tag">Viewport meta 标签</a></li> <li><a href="/zh-CN/docs/Web/HTML/CORS_enabled_image">允许图片和 canvas 跨源使用</a></li> </ol> </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">在本文中</h2></header><ul class="document-toc-list"><li class="document-toc-item "><a class="document-toc-link" href="#尝试一下">尝试一下</a></li><li class="document-toc-item "><a class="document-toc-link" href="#属性">属性</a></li><li class="document-toc-item "><a class="document-toc-link" href="#示例">示例</a></li><li class="document-toc-item "><a class="document-toc-link" href="#规范">规范</a></li><li class="document-toc-item "><a class="document-toc-link" href="#浏览器兼容性">浏览器兼容性</a></li><li class="document-toc-item "><a class="document-toc-link" href="#参见">参见</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="zh-CN"><header><h1><thead></h1><details class="baseline-indicator high"><summary><span class="indicator" role="img" aria-label="Baseline Check"></span><h2>Baseline <span class="not-bold">Widely available</span></h2><div class="browsers"><span class="engine" title="Supported in Chrome and Edge"><span class="browser chrome supported" role="img" aria-label="Chrome check"></span><span class="browser edge supported" role="img" aria-label="Edge check"></span></span><span class="engine" title="Supported in Firefox"><span class="browser firefox supported" role="img" aria-label="Firefox check"></span></span><span class="engine" title="Supported in Safari"><span class="browser safari supported" role="img" aria-label="Safari check"></span></span></div><span class="icon icon-chevron "></span></summary><div class="extra"><p>This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.</p><ul><li><a href="/zh-CN/docs/Glossary/Baseline/Compatibility" data-glean="baseline_link_learn_more" target="_blank" class="learn-more">Learn more</a></li><li><a href="#浏览器兼容性" data-glean="baseline_link_bcd_table">See full compatibility</a></li><li><a href="https://survey.alchemer.com/s3/7634825/MDN-baseline-feedback?page=%2Fzh-CN%2Fdocs%2FWeb%2FHTML%2FElement%2Fthead&level=high" data-glean="baseline_link_feedback" class="feedback-link" target="_blank" rel="noreferrer">Report feedback</a></li></ul></div></details></header><div class="section-content"><p><a href="/zh-CN/docs/Web/HTML">HTML</a> 的 <strong><code><thead></code></strong> 元素定义了一组定义表格的列头的行。</p></div><section aria-labelledby="尝试一下"><h2 id="尝试一下"><a href="#尝试一下">尝试一下</a></h2><div class="section-content"><iframe class="interactive is-tabbed-taller-height" height="200" src="https://interactive-examples.mdn.mozilla.net/pages/tabbed/thead.html" title="MDN Web Docs Interactive Example" allow="clipboard-write" loading="lazy"></iframe> <figure class="table-container"><table class="properties"> <tbody> <tr> <th scope="row"><a href="/en-US/docs/Web/HTML/Content_categories" class="only-in-en-us" title="此页面目前仅提供英文版本">内容类别</a></th> <td>无。</td> </tr> <tr> <th scope="row">允许内容</th> <td>零或多个<a href="/zh-CN/docs/Web/HTML/Element/tr"><code><tr></code></a>元素。</td> </tr> <tr> <th scope="row">标签省略</th> <td>开头的标签是强制的。如果<a href="/zh-CN/docs/Web/HTML/Element/thead" aria-current="page"><code><thead></code></a> 元素后直接跟 <a href="/zh-CN/docs/Web/HTML/Element/tbody"><code><tbody></code></a>或<a href="/zh-CN/docs/Web/HTML/Element/tfoot"><code><tfoot></code></a>元素，结尾的标签可以被省略。</td> </tr> <tr> <th scope="row">Permitted parents</th> <td>A <a href="/zh-CN/docs/Web/HTML/Element/table"><code><table></code></a> element. The <a href="/zh-CN/docs/Web/HTML/Element/thead" aria-current="page"><code><thead></code></a> must appear after any <a href="/zh-CN/docs/Web/HTML/Element/caption"><code><caption></code></a> or <a href="/zh-CN/docs/Web/HTML/Element/colgroup"><code><colgroup></code></a> element, even implicitly defined, but before any <a href="/zh-CN/docs/Web/HTML/Element/tbody"><code><tbody></code></a>, <a href="/zh-CN/docs/Web/HTML/Element/tfoot"><code><tfoot></code></a> and <a href="/zh-CN/docs/Web/HTML/Element/tr"><code><tr></code></a> element.</td> </tr> <tr> <th scope="row">Permitted ARIA roles</th> <td>Any</td> </tr> <tr> <th scope="row">DOM interface</th> <td><a href="/zh-CN/docs/Web/API/HTMLTableSectionElement"><code>HTMLTableSectionElement</code></a></td> </tr> </tbody> </table></figure></div></section><section aria-labelledby="属性"><h2 id="属性"><a href="#属性">属性</a></h2><div class="section-content"><p>This element includes the <a href="/zh-CN/docs/Web/HTML/Global_attributes">global attributes</a>.</p> <dl> <dt id="align"><a href="#align"><code>align</code></a> <abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></dt> <dd> <p>This enumerated attribute specifies how horizontal alignment of each cell content will be handled. Possible values are:</p> <ul> <li> <p><code>left</code>, aligning the content to the left of the cell</p> </li> <li> <p><code>center</code>, centering the content in the cell</p> </li> <li> <p><code>right</code>, aligning the content to the right of the cell</p> </li> <li> <p><code>justify</code>, inserting spaces into the textual content so that the content is justified in the cell</p> </li> <li> <p><code>char</code>, aligning the textual content on a special character with a minimal offset, defined by the <a href="/zh-CN/docs/Web/HTML/Element/thead#char" aria-current="page"><code>char</code></a> and <a href="/zh-CN/docs/Web/HTML/Element/thead#charoff" aria-current="page"><code>charoff</code></a> attributes. If this attribute is not set, the <code>left</code> value is assumed.</p> </li> </ul> <div class="notecard note"> <p><strong>备注：</strong>Do not use this attribute as it is obsolete (not supported) in the latest standard.</p> <ul> <li>To achieve the same effect as the <code>left</code>, <code>center</code>, <code>right</code> or <code>justify</code> values, use the CSS <a href="/zh-CN/docs/Web/CSS/text-align"><code>text-align</code></a> property on it.</li> <li>To achieve the same effect as the <code>char</code> value, in CSS3, you can use the value of the <a href="/zh-CN/docs/Web/HTML/Element/thead#char" aria-current="page"><code>char</code></a> as the value of the <a href="/zh-CN/docs/Web/CSS/text-align"><code>text-align</code></a> property.</li> </ul> </div> </dd> <dt id="bgcolor"><a href="#bgcolor"><code>bgcolor</code></a> <abbr class="icon icon-nonstandard" title="非标准。请在使用前检查跨浏览器支持。"> <span class="visually-hidden">非标准</span> </abbr></dt> <dd> <p>This attribute defines the background color of each cell of the column. It is one of the 6-digit hexadecimal code as defined in <a href="https://www.w3.org/Graphics/Color/sRGB" class="external" target="_blank">sRGB</a>, prefixed by a '#'. One of the sixteen predefined color strings may be used.</p> <div class="notecard note"> <p><strong>备注：</strong>Do not use this attribute, as it is non-standard and only implemented in some versions of Microsoft Internet Explorer: the <a href="/zh-CN/docs/Web/HTML/Element/thead" aria-current="page"><code><thead></code></a> element should be styled using <a href="/zh-CN/docs/Web/CSS">CSS</a>. To give a similar effect to the <strong>bgcolor</strong> attribute, use the <a href="/zh-CN/docs/Web/CSS">CSS</a> property <a href="/zh-CN/docs/Web/CSS/background-color"><code>background-color</code></a>, on the relevant <a class="only-in-en-us" title="此页面目前仅提供英文版本" href="/en-US/docs/Web/HTML/Element/td"><code><td></code></a> or <a href="/zh-CN/docs/Web/HTML/Element/th"><code><th></code></a> elements.</p> </div> </dd> <dt id="char"><a href="#char"><code>char</code></a> <abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></dt> <dd> <p>This attribute is used to set the character to align the cells in a column on. Typical values for this include a period (.) when attempting to align numbers or monetary values. If <a href="/zh-CN/docs/Web/HTML/Element/tr#align"><code>align</code></a> is not set to <code>char</code>, this attribute is ignored.</p> <div class="notecard note"> <p><strong>备注：</strong>Do not use this attribute as it is obsolete (and not supported) in the latest standard. To achieve the same effect as the <a href="/zh-CN/docs/Web/HTML/Element/thead#char" aria-current="page"><code>char</code></a>, in CSS3, you can use the character set using the <a href="/zh-CN/docs/Web/HTML/Element/thead#char" aria-current="page"><code>char</code></a> attribute as the value of the <a href="/zh-CN/docs/Web/CSS/text-align"><code>text-align</code></a> property.</p> </div> </dd> <dt id="charoff"><a href="#charoff"><code>charoff</code></a> <abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></dt> <dd> <p>This attribute is used to indicate the number of characters to offset the column data from the alignment characters specified by the <strong>char</strong> attribute.</p> <div class="notecard note"> <p><strong>备注：</strong>Do not use this attribute as it is obsolete (and not supported) in the latest standard.</p> </div> </dd> <dt id="valign"><a href="#valign"><code>valign</code></a> <abbr class="icon icon-deprecated" title="已弃用。请不要在新的网站中使用。"> <span class="visually-hidden">已弃用</span> </abbr></dt> <dd> <p>This attribute specifies the vertical alignment of the text within each row of cells of the table header. Possible values for this attribute are:</p> <ul> <li> <p><code>baseline</code>, which will put the text as close to the bottom of the cell as it is possible, but align it on the <a href="https://en.wikipedia.org/wiki/Baseline_%28typography%29" class="external" target="_blank">baseline</a> of the characters instead of the bottom of them. If characters are all of the size, this has the same effect as <code>bottom</code>.</p> </li> <li> <p><code>bottom</code>, which will put the text as close to the bottom of the cell as it is possible;</p> </li> <li> <p><code>middle</code>, which will center the text in the cell;</p> </li> <li> <p><code>top</code>, which will put the text as close to the top of the cell as it is possible.</p> </li> </ul> <div class="notecard note"> <p><strong>备注：</strong>Do not use this attribute as it is obsolete (and not supported) in the latest standard: instead set the CSS <a href="/zh-CN/docs/Web/CSS/vertical-align"><code>vertical-align</code></a> property on it.</p> </div> </dd> </dl></div></section><section aria-labelledby="示例"><h2 id="示例"><a href="#示例">示例</a></h2><div class="section-content"><p>See <a href="/zh-CN/docs/Web/HTML/Element/table"><code><table></code></a> for examples on <code><thead></code>.</p></div></section><h2 id="规范"><a href="#规范">规范</a></h2><table class="standard-table"><thead><tr><th scope="col">Specification</th></tr></thead><tbody><tr><td><a href="https://html.spec.whatwg.org/multipage/tables.html#the-thead-element">HTML Standard <br/><small># the-thead-element</small></a></td></tr></tbody></table><h2 id="浏览器兼容性"><a href="#浏览器兼容性">浏览器兼容性</a></h2><p>BCD tables only load in the browser<noscript> with JavaScript enabled. Enable JavaScript to view data.</noscript></p><section aria-labelledby="参见"><h2 id="参见"><a href="#参见">参见</a></h2><div class="section-content"><ul> <li> <p>Other table-related HTML Elements: <a href="/zh-CN/docs/Web/HTML/Element/caption"><code><caption></code></a>, <a href="/zh-CN/docs/Web/HTML/Element/col"><code><col></code></a>, <a href="/zh-CN/docs/Web/HTML/Element/colgroup"><code><colgroup></code></a>, <a href="/zh-CN/docs/Web/HTML/Element/table"><code><table></code></a>, <a href="/zh-CN/docs/Web/HTML/Element/tbody"><code><tbody></code></a>, <a class="only-in-en-us" title="此页面目前仅提供英文版本" href="/en-US/docs/Web/HTML/Element/td"><code><td></code></a>, <a href="/zh-CN/docs/Web/HTML/Element/tfoot"><code><tfoot></code></a>, <a href="/zh-CN/docs/Web/HTML/Element/th"><code><th></code></a>, <a href="/zh-CN/docs/Web/HTML/Element/tr"><code><tr></code></a>;</p> </li> <li> <p>CSS properties and pseudo-classes that may be specially useful to style the <code><thead></code> element:</p> <ul> <li>the <a href="/zh-CN/docs/Web/CSS/:nth-child"><code>:nth-child</code></a> pseudo-class to set the alignment on the cells of the column;</li> <li>the <a href="/zh-CN/docs/Web/CSS/text-align"><code>text-align</code></a> property to align all cells content on the same character, like '.'.<</li> </ul> </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/translated-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="2024-07-27T04:21:30.000Z">2024年7月27日</time> by <a href="/zh-CN/docs/Web/HTML/Element/thead/contributors.txt" rel="nofollow">MDN contributors</a>.</p><div id="on-github" class="on-github"><a href="https://github.com/mdn/translated-content/blob/main/files/zh-cn/web/html/element/thead/index.md?plain=1" title="Folder: zh-cn/web/html/element/thead (Opens in a new tab)" target="_blank" rel="noopener noreferrer">View this page on GitHub</a> • <a href="https://github.com/mdn/translated-content/issues/new?template=page-report-zh-cn.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fzh-CN%2Fdocs%2FWeb%2FHTML%2FElement%2Fthead&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+%60zh-cn%2Fweb%2Fhtml%2Felement%2Fthead%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fzh-CN%2Fdocs%2FWeb%2FHTML%2FElement%2Fthead%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Ftranslated-content%2Fblob%2Fmain%2Ffiles%2Fzh-cn%2Fweb%2Fhtml%2Felement%2Fthead%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Ftranslated-content%2Fcommit%2F066f0b9f610a2a871f1ccb1ffd4dfaa8e5682798%0A*+Document+last+modified%3A+2024-07-27T04%3A21%3A30.000Z%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="/zh-CN/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="/zh-CN/docs/Web">Web Technologies</a></li><li class="footer-nav-item"><a class="footer-nav-link" href="/zh-CN/docs/Learn">Learn Web Development</a></li><li class="footer-nav-item"><a class="footer-nav-link" href="/zh-CN/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="/zh-CN/docs/MDN/Writing_guidelines/Attrib_copyright_license">a Creative Commons license</a>.</p></div></div></footer></div><script type="application/json" id="hydration">{"url":"/zh-CN/docs/Web/HTML/Element/thead","doc":{"isMarkdown":true,"isTranslated":true,"isActive":true,"flaws":{},"title":"<thead>","mdn_url":"/zh-CN/docs/Web/HTML/Element/thead","locale":"zh-CN","native":"中文 (简体)","browserCompat":["html.elements.thead"],"baseline":{"baseline":"high","baseline_high_date":"2018-01-29","baseline_low_date":"2015-07-29","support":{"chrome":"1","chrome_android":"18","edge":"12","firefox":"1","firefox_android":"4","safari":"1","safari_ios":"1"}},"sidebarHTML":"\n <ol>\n <li class=\"section\"><a href=\"/zh-CN/docs/Web/HTML\">HTML</a></li>\n <li class=\"section\"><a href=\"/zh-CN/docs/Learn/HTML\">教程</a></li>\n <li><a href=\"/zh-CN/docs/Learn/Getting_started_with_the_web/HTML_basics\">HTML 基础</a></li>\n <li class=\"toggle\">\n <details>\n <summary>HTML 介绍</summary>\n <ol>\n <li><a href=\"/zh-CN/docs/Learn/HTML/Introduction_to_HTML\">HTML 概述</a></li>\n <li><a href=\"/zh-CN/docs/Learn/HTML/Introduction_to_HTML/Getting_started\">开始学习 HTML</a></li>\n <li><a href=\"/zh-CN/docs/Learn/HTML/Introduction_to_HTML/The_head_metadata_in_HTML\">head 标签里面有什么？HTML 中的元数据</a></li>\n <li><a href=\"/zh-CN/docs/Learn/HTML/Introduction_to_HTML/HTML_text_fundamentals\">HTML 文本基础</a></li>\n <li><a href=\"/zh-CN/docs/Learn/HTML/Introduction_to_HTML/Creating_hyperlinks\">建立超链接</a></li>\n <li><a href=\"/zh-CN/docs/Learn/HTML/Introduction_to_HTML/Advanced_text_formatting\">高级文本格式</a></li>\n <li><a href=\"/zh-CN/docs/Learn/HTML/Introduction_to_HTML/Document_and_website_structure\">文档和网站架构</a></li>\n <li><a href=\"/zh-CN/docs/Learn/HTML/Introduction_to_HTML/Debugging_HTML\">HTML 调试</a></li>\n <li><a href=\"/zh-CN/docs/Learn/HTML/Introduction_to_HTML/Marking_up_a_letter\">测验：标记信件</a></li>\n <li><a href=\"/zh-CN/docs/Learn/HTML/Introduction_to_HTML/Structuring_a_page_of_content\">测验：构建网页内容</a></li>\n </ol>\n </details>\n </li>\n <li class=\"toggle\">\n <details>\n <summary>多媒体与嵌入</summary>\n <ol>\n <li><a href=\"/zh-CN/docs/Learn/HTML/Multimedia_and_embedding\">多媒体与嵌入概述</a></li>\n <li><a href=\"/zh-CN/docs/Learn/HTML/Multimedia_and_embedding/Images_in_HTML\">HTML 中的图片</a></li>\n <li><a href=\"/zh-CN/docs/Learn/HTML/Multimedia_and_embedding/Video_and_audio_content\">视频和音频内容</a></li>\n <li><a href=\"/zh-CN/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies\">从 object 到 iframe——其他嵌入技术</a></li>\n <li><a href=\"/zh-CN/docs/Learn/HTML/Multimedia_and_embedding/Adding_vector_graphics_to_the_Web\">为 web 新增矢量图</a></li>\n <li><a href=\"/zh-CN/docs/Learn/HTML/Multimedia_and_embedding/Responsive_images\">响应式图片</a></li>\n <li><a href=\"/zh-CN/docs/Learn/HTML/Multimedia_and_embedding/Mozilla_splash_page\">测验：Mozilla 醒目页面</a></li>\n </ol>\n </details>\n </li>\n <li class=\"toggle\">\n <details>\n <summary>HTML 表格</summary>\n <ol>\n <li><a href=\"/zh-CN/docs/Learn/HTML/Tables\">HTML 表格概述</a></li>\n <li><a href=\"/zh-CN/docs/Learn/HTML/Tables/Basics\">HTML 表格基础</a></li>\n <li><a href=\"/zh-CN/docs/Learn/HTML/Tables/Advanced\">HTML 高级表格特性和无障碍</a></li>\n <li><a href=\"/zh-CN/docs/Learn/HTML/Tables/Structuring_planet_data\">测验：构建行星数据</a></li>\n </ol>\n </details>\n </li>\n <li class=\"section\"><a href=\"/zh-CN/docs/Web/HTML/Reference\">参考：</a></li>\n <li class=\"toggle\">\n <details open=\"\">\n <summary>HTML 元素</summary>\n <ol><li><a href=\"/zh-CN/docs/Web/HTML/Element/a\"><code><a></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/abbr\"><code><abbr></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/acronym\"><code><acronym></code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/address\"><code><address></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/area\"><code><area></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/article\"><code><article></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/aside\"><code><aside></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/audio\"><code><audio></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/b\"><code><b></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/base\"><code><base></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/bdi\"><code><bdi></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/bdo\"><code><bdo></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/big\"><code><big></code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/blockquote\"><code><blockquote></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/body\"><code><body></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/br\"><code><br></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/button\"><code><button></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/canvas\"><code><canvas></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/caption\"><code><caption></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/center\"><code><center></code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/cite\"><code><cite></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/code\"><code><code></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/col\"><code><col></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/colgroup\"><code><colgroup></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/data\"><code><data></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/datalist\"><code><datalist></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/dd\"><code><dd></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/del\"><code><del></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/details\"><code><details></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/dfn\"><code><dfn></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/dialog\"><code><dialog></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/dir\"><code><dir></code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/div\"><code><div></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/dl\"><code><dl></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/dt\"><code><dt></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/em\"><code><em></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/embed\"><code><embed></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/fencedframe\"><code><fencedframe></code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/fieldset\"><code><fieldset></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/figcaption\"><code><figcaption></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/figure\"><code><figure></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/font\"><code><font></code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/footer\"><code><footer></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/form\"><code>form</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/frame\"><code><frame></code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/frameset\"><code><frameset></code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/Heading_Elements\"><code><h1></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/head\"><code><head></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/header\"><code><header></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/hgroup\"><code><hgroup></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/hr\"><code><hr></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/html\"><code><html></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/i\"><code><i></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/iframe\"><code><iframe></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/img\"><code><img></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/input\"><code><input></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/ins\"><code><ins></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/kbd\"><code><kbd></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/label\"><code><label></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/legend\"><code><legend></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/li\"><code><li></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/link\"><code><link></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/main\"><code><main></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/map\"><code><map></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/mark\"><code><mark></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/marquee\"><code><marquee></code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/menu\"><code><menu></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/meta\"><code><meta></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/meter\"><code><meter></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/nav\"><code><nav></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/nobr\"><code><nobr></code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/noembed\"><code><noembed></code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/noframes\"><code><noframes></code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/noscript\"><code><noscript></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/object\"><code><object></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/ol\"><code><ol></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/optgroup\"><code><optgroup></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/option\"><code><option></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/output\"><code><output></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/p\"><code><p></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/param\"><code><param></code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/picture\"><code><picture></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/plaintext\"><code><plaintext></code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/portal\"><code><portal></code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/pre\"><code><pre></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/progress\"><code><progress></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/q\"><code><q></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/rb\"><code><rb></code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/rp\"><code><rp></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/rt\"><code><rt></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/rtc\"><code><rtc></code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/ruby\"><code><ruby></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/s\"><code><s></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/samp\"><code><samp></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/script\"><code><script></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/search\"><code><search></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/section\"><code><section></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/select\"><code><select></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/slot\"><code><slot></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/small\"><code><small></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/source\"><code><source></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/span\"><code><span></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/strike\"><code><strike></code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/strong\"><code><strong></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/style\"><code><style></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/sub\"><code><sub></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/summary\"><code><summary></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/sup\"><code><sup></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/table\"><code><table></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/tbody\"><code><tbody></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/td\"><code><td></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/template\"><code><template></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/textarea\"><code><textarea></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/tfoot\"><code><tfoot></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/th\"><code><th></code></a></li><li><em><a href=\"/zh-CN/docs/Web/HTML/Element/thead\" aria-current=\"page\"><code><thead></code></a></em></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/time\"><code><time></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/title\"><code><title></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/tr\"><code><tr></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/track\"><code><track></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/tt\"><code><tt></code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/u\"><code><u></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/ul\"><code><ul></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/var\"><code><var></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/video\"><code><video></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/wbr\"><code><wbr></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/xmp\"><code><xmp></code></a><abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></li></ol>\n </details>\n </li>\n <li class=\"toggle\">\n <details>\n <summary>全局属性</summary>\n <ol><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/accesskey\"><code>accesskey</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/anchor\"><code>anchor</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr><abbr class=\"icon icon-nonstandard\" title=\"非标准。请在使用前检查跨浏览器支持。\">\n <span class=\"visually-hidden\">非标准</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/autocapitalize\"><code>autocapitalize</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/autocorrect\"><code>autocorrect</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/autofocus\"><code>autofocus</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/class\"><code>class</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/contenteditable\"><code>contenteditable</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/data-*\"><code>data-*</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/dir\"><code>dir</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/draggable\"><code>draggable</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/enterkeyhint\"><code>enterkeyhint</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/exportparts\"><code>exportparts</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/hidden\"><code>hidden</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/id\"><code>id</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/inert\"><code>inert</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/inputmode\"><code>inputmode</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/is\"><code>is</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/itemid\"><code>itemid</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/itemprop\"><code>itemprop</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/itemref\"><code>itemref</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/itemscope\"><code>itemscope</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/itemtype\"><code>itemtype</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/lang\"><code>lang</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/nonce\"><code>nonce</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/part\"><code>part</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/popover\"><code>popover</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/slot\"><code>slot</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/spellcheck\"><code>spellcheck</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/style\"><code>style</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/tabindex\"><code>tabindex</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/title\"><code>title</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/translate\"><code>translate</code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/virtualkeyboardpolicy\"><code>virtualkeyboardpolicy</code></a><abbr class=\"icon icon-experimental\" title=\"实验性。预期行为可能会在未来发生变更。\">\n <span class=\"visually-hidden\">实验性</span>\n</abbr></li><li><a href=\"/zh-CN/docs/Web/HTML/Global_attributes/writingsuggestions\"><code>writingsuggestions</code></a></li></ol>\n </details>\n </li>\n <li class=\"toggle\">\n <details>\n <summary>属性</summary>\n <ol>\n \n <li><a href=\"/zh-CN/docs/Web/HTML/Attributes/accept\">accept</a></li>\n \n <li><a href=\"/zh-CN/docs/Web/HTML/Attributes/autocomplete\">autocomplete</a></li>\n \n <li><a href=\"/zh-CN/docs/Web/HTML/Attributes/capture\">capture</a></li>\n \n <li><a href=\"/zh-CN/docs/Web/HTML/Attributes/crossorigin\">crossorigin</a></li>\n \n <li><a class=\"only-in-en-us\" title=\"此页面目前仅提供英文版本\" href=\"/en-US/docs/Web/HTML/Attributes/dirname\">dirname</a></li>\n \n <li><a href=\"/zh-CN/docs/Web/HTML/Attributes/disabled\">disabled</a></li>\n \n <li><a class=\"only-in-en-us\" title=\"此页面目前仅提供英文版本\" href=\"/en-US/docs/Web/HTML/Attributes/elementtiming\">elementtiming</a></li>\n \n <li><a href=\"/zh-CN/docs/Web/HTML/Attributes/for\">for</a></li>\n \n <li><a href=\"/zh-CN/docs/Web/HTML/Attributes/max\">max</a></li>\n \n <li><a href=\"/zh-CN/docs/Web/HTML/Attributes/maxlength\">maxlength</a></li>\n \n <li><a href=\"/zh-CN/docs/Web/HTML/Attributes/min\">min</a></li>\n \n <li><a class=\"only-in-en-us\" title=\"此页面目前仅提供英文版本\" href=\"/en-US/docs/Web/HTML/Attributes/minlength\">minlength</a></li>\n \n <li><a href=\"/zh-CN/docs/Web/HTML/Attributes/multiple\">multiple</a></li>\n \n <li><a href=\"/zh-CN/docs/Web/HTML/Attributes/pattern\">pattern</a></li>\n \n <li><a href=\"/zh-CN/docs/Web/HTML/Attributes/placeholder\">placeholder</a></li>\n \n <li><a href=\"/zh-CN/docs/Web/HTML/Attributes/readonly\">readonly</a></li>\n \n <li><a href=\"/zh-CN/docs/Web/HTML/Attributes/rel\">rel</a></li>\n \n <li><a href=\"/zh-CN/docs/Web/HTML/Attributes/required\">required</a></li>\n \n <li><a href=\"/zh-CN/docs/Web/HTML/Attributes/size\">size</a></li>\n \n <li><a href=\"/zh-CN/docs/Web/HTML/Attributes/step\">step</a></li>\n \n </ol>\n </details>\n </li>\n <li class=\"toggle\">\n <details>\n <summary><code><input></code> 类型</summary>\n <ol><li><a href=\"/zh-CN/docs/Web/HTML/Element/input/button\"><code><input type=\"button\"></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/input/checkbox\"><code><input type=\"checkbox\"></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/input/color\"><code><input type=\"color\"></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/input/date\"><code><input type=\"date\"></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/input/datetime-local\"><code><input type=\"datetime-local\"></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/input/email\"><code><input type=\"email\"></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/input/file\"><code><input type=\"file\"></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/input/hidden\"><code><input type=\"hidden\"></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/input/image\"><code><input type=\"image\"></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/input/month\"><code><input type=\"month\"></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/input/number\"><code><input type=\"number\"></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/input/password\"><code><input type=\"password\"></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/input/radio\"><code><input type=\"radio\"></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/input/range\"><code><input type=\"range\"></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/input/reset\"><code><input type=\"reset\"></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/input/search\"><code><input type=\"search\"></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/input/submit\"><code><input type=\"submit\"></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/input/tel\"><code><input type=\"tel\"></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/input/text\"><code><input type=\"text\"></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/input/time\"><code><input type=\"time\"></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/input/url\"><code><input type=\"url\"></code></a></li><li><a href=\"/zh-CN/docs/Web/HTML/Element/input/week\"><code><input type=\"week\"></code></a></li></ol>\n </details>\n </li>\n <li class=\"section no-link\">指南：</li>\n <li>\n <ol>\n <li><a href=\"/zh-CN/docs/Web/HTML/Content_categories\">内容分类</a></li>\n <li><a href=\"/zh-CN/docs/Glossary/Block-level_content\">块级元素</a></li>\n <li><a href=\"/zh-CN/docs/Glossary/Inline-level_content\">行级元素</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTML/Quirks_Mode_and_Standards_Mode\">怪异模式和标准模式</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTML/Date_and_time_formats\">HTML 中使用的日期与时间格式</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTML/Constraint_validation\">约束验证</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTML/Microdata\">微数据</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTML/microformats\">微格式</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTML/Viewport_meta_tag\">Viewport meta 标签</a></li>\n <li><a href=\"/zh-CN/docs/Web/HTML/CORS_enabled_image\">允许图片和 canvas 跨源使用</a></li>\n </ol>\n </li>\n </ol>\n","sidebarMacro":"HTMLSidebar","body":[{"type":"prose","value":{"id":null,"title":null,"isH3":false,"content":"<p><a href=\"/zh-CN/docs/Web/HTML\">HTML</a> 的 <strong><code><thead></code></strong> 元素定义了一组定义表格的列头的行。</p>"}},{"type":"prose","value":{"id":"尝试一下","title":"尝试一下","isH3":false,"content":"<iframe class=\"interactive is-tabbed-taller-height\" height=\"200\" src=\"https://interactive-examples.mdn.mozilla.net/pages/tabbed/thead.html\" title=\"MDN Web Docs Interactive Example\" allow=\"clipboard-write\" loading=\"lazy\"></iframe>\n<figure class=\"table-container\"><table class=\"properties\">\n <tbody>\n <tr>\n <th scope=\"row\"><a href=\"/en-US/docs/Web/HTML/Content_categories\" class=\"only-in-en-us\" title=\"此页面目前仅提供英文版本\">内容类别</a></th>\n <td>无。</td>\n </tr>\n <tr>\n <th scope=\"row\">允许内容</th>\n <td>零或多个<a href=\"/zh-CN/docs/Web/HTML/Element/tr\"><code><tr></code></a>元素。</td>\n </tr>\n <tr>\n <th scope=\"row\">标签省略</th>\n <td>开头的标签是强制的。如果<a href=\"/zh-CN/docs/Web/HTML/Element/thead\" aria-current=\"page\"><code><thead></code></a> 元素后直接跟 <a href=\"/zh-CN/docs/Web/HTML/Element/tbody\"><code><tbody></code></a>或<a href=\"/zh-CN/docs/Web/HTML/Element/tfoot\"><code><tfoot></code></a>元素，结尾的标签可以被省略。</td>\n </tr>\n <tr>\n <th scope=\"row\">Permitted parents</th>\n <td>A <a href=\"/zh-CN/docs/Web/HTML/Element/table\"><code><table></code></a> element. The <a href=\"/zh-CN/docs/Web/HTML/Element/thead\" aria-current=\"page\"><code><thead></code></a> must appear after any <a href=\"/zh-CN/docs/Web/HTML/Element/caption\"><code><caption></code></a> or <a href=\"/zh-CN/docs/Web/HTML/Element/colgroup\"><code><colgroup></code></a> element, even implicitly defined, but before any <a href=\"/zh-CN/docs/Web/HTML/Element/tbody\"><code><tbody></code></a>, <a href=\"/zh-CN/docs/Web/HTML/Element/tfoot\"><code><tfoot></code></a> and <a href=\"/zh-CN/docs/Web/HTML/Element/tr\"><code><tr></code></a> element.</td>\n </tr>\n <tr>\n <th scope=\"row\">Permitted ARIA roles</th>\n <td>Any</td>\n </tr>\n <tr>\n <th scope=\"row\">DOM interface</th>\n <td><a href=\"/zh-CN/docs/Web/API/HTMLTableSectionElement\"><code>HTMLTableSectionElement</code></a></td>\n </tr>\n </tbody>\n</table></figure>"}},{"type":"prose","value":{"id":"属性","title":"属性","isH3":false,"content":"<p>This element includes the <a href=\"/zh-CN/docs/Web/HTML/Global_attributes\">global attributes</a>.</p>\n<dl>\n <dt id=\"align\"><a href=\"#align\"><code>align</code></a> <abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></dt>\n <dd>\n <p>This enumerated attribute specifies how horizontal alignment of each cell content will be handled. Possible values are:</p>\n <ul>\n <li>\n <p><code>left</code>, aligning the content to the left of the cell</p>\n </li>\n <li>\n <p><code>center</code>, centering the content in the cell</p>\n </li>\n <li>\n <p><code>right</code>, aligning the content to the right of the cell</p>\n </li>\n <li>\n <p><code>justify</code>, inserting spaces into the textual content so that the content is justified in the cell</p>\n </li>\n <li>\n <p><code>char</code>, aligning the textual content on a special character with a minimal offset, defined by the <a href=\"/zh-CN/docs/Web/HTML/Element/thead#char\" aria-current=\"page\"><code>char</code></a> and <a href=\"/zh-CN/docs/Web/HTML/Element/thead#charoff\" aria-current=\"page\"><code>charoff</code></a> attributes. If this attribute is not set, the <code>left</code> value is assumed.</p>\n </li>\n </ul>\n <div class=\"notecard note\">\n <p><strong>备注：</strong>Do not use this attribute as it is obsolete (not supported) in the latest standard.</p>\n <ul>\n <li>To achieve the same effect as the <code>left</code>, <code>center</code>, <code>right</code> or <code>justify</code> values, use the CSS <a href=\"/zh-CN/docs/Web/CSS/text-align\"><code>text-align</code></a> property on it.</li>\n <li>To achieve the same effect as the <code>char</code> value, in CSS3, you can use the value of the <a href=\"/zh-CN/docs/Web/HTML/Element/thead#char\" aria-current=\"page\"><code>char</code></a> as the value of the <a href=\"/zh-CN/docs/Web/CSS/text-align\"><code>text-align</code></a> property.</li>\n </ul>\n </div>\n </dd>\n <dt id=\"bgcolor\"><a href=\"#bgcolor\"><code>bgcolor</code></a> <abbr class=\"icon icon-nonstandard\" title=\"非标准。请在使用前检查跨浏览器支持。\">\n <span class=\"visually-hidden\">非标准</span>\n</abbr></dt>\n <dd>\n <p>This attribute defines the background color of each cell of the column. It is one of the 6-digit hexadecimal code as defined in <a href=\"https://www.w3.org/Graphics/Color/sRGB\" class=\"external\" target=\"_blank\">sRGB</a>, prefixed by a '#'. One of the sixteen predefined color strings may be used.</p>\n <div class=\"notecard note\">\n <p><strong>备注：</strong>Do not use this attribute, as it is non-standard and only implemented in some versions of Microsoft Internet Explorer: the <a href=\"/zh-CN/docs/Web/HTML/Element/thead\" aria-current=\"page\"><code><thead></code></a> element should be styled using <a href=\"/zh-CN/docs/Web/CSS\">CSS</a>. To give a similar effect to the <strong>bgcolor</strong> attribute, use the <a href=\"/zh-CN/docs/Web/CSS\">CSS</a> property <a href=\"/zh-CN/docs/Web/CSS/background-color\"><code>background-color</code></a>, on the relevant <a class=\"only-in-en-us\" title=\"此页面目前仅提供英文版本\" href=\"/en-US/docs/Web/HTML/Element/td\"><code><td></code></a> or <a href=\"/zh-CN/docs/Web/HTML/Element/th\"><code><th></code></a> elements.</p>\n </div>\n </dd>\n <dt id=\"char\"><a href=\"#char\"><code>char</code></a> <abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></dt>\n <dd>\n <p>This attribute is used to set the character to align the cells in a column on. Typical values for this include a period (.) when attempting to align numbers or monetary values. If <a href=\"/zh-CN/docs/Web/HTML/Element/tr#align\"><code>align</code></a> is not set to <code>char</code>, this attribute is ignored.</p>\n <div class=\"notecard note\">\n <p><strong>备注：</strong>Do not use this attribute as it is obsolete (and not supported) in the latest standard. To achieve the same effect as the <a href=\"/zh-CN/docs/Web/HTML/Element/thead#char\" aria-current=\"page\"><code>char</code></a>, in CSS3, you can use the character set using the <a href=\"/zh-CN/docs/Web/HTML/Element/thead#char\" aria-current=\"page\"><code>char</code></a> attribute as the value of the <a href=\"/zh-CN/docs/Web/CSS/text-align\"><code>text-align</code></a> property.</p>\n </div>\n </dd>\n <dt id=\"charoff\"><a href=\"#charoff\"><code>charoff</code></a> <abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></dt>\n <dd>\n <p>This attribute is used to indicate the number of characters to offset the column data from the alignment characters specified by the <strong>char</strong> attribute.</p>\n <div class=\"notecard note\">\n <p><strong>备注：</strong>Do not use this attribute as it is obsolete (and not supported) in the latest standard.</p>\n </div>\n </dd>\n <dt id=\"valign\"><a href=\"#valign\"><code>valign</code></a> <abbr class=\"icon icon-deprecated\" title=\"已弃用。请不要在新的网站中使用。\">\n <span class=\"visually-hidden\">已弃用</span>\n</abbr></dt>\n <dd>\n <p>This attribute specifies the vertical alignment of the text within each row of cells of the table header. Possible values for this attribute are:</p>\n <ul>\n <li>\n <p><code>baseline</code>, which will put the text as close to the bottom of the cell as it is possible, but align it on the <a href=\"https://en.wikipedia.org/wiki/Baseline_%28typography%29\" class=\"external\" target=\"_blank\">baseline</a> of the characters instead of the bottom of them. If characters are all of the size, this has the same effect as <code>bottom</code>.</p>\n </li>\n <li>\n <p><code>bottom</code>, which will put the text as close to the bottom of the cell as it is possible;</p>\n </li>\n <li>\n <p><code>middle</code>, which will center the text in the cell;</p>\n </li>\n <li>\n <p><code>top</code>, which will put the text as close to the top of the cell as it is possible.</p>\n </li>\n </ul>\n <div class=\"notecard note\">\n <p><strong>备注：</strong>Do not use this attribute as it is obsolete (and not supported) in the latest standard: instead set the CSS <a href=\"/zh-CN/docs/Web/CSS/vertical-align\"><code>vertical-align</code></a> property on it.</p>\n </div>\n </dd>\n</dl>"}},{"type":"prose","value":{"id":"示例","title":"示例","isH3":false,"content":"<p>See <a href=\"/zh-CN/docs/Web/HTML/Element/table\"><code><table></code></a> for examples on <code><thead></code>.</p>"}},{"type":"specifications","value":{"title":"规范","id":"规范","isH3":false,"specifications":[{"bcdSpecificationURL":"https://html.spec.whatwg.org/multipage/tables.html#the-thead-element","title":"HTML Standard"}],"query":"html.elements.thead"}},{"type":"browser_compatibility","value":{"title":"浏览器兼容性","id":"浏览器兼容性","isH3":false,"query":"html.elements.thead"}},{"type":"prose","value":{"id":"参见","title":"参见","isH3":false,"content":"<ul>\n <li>\n <p>Other table-related HTML Elements: <a href=\"/zh-CN/docs/Web/HTML/Element/caption\"><code><caption></code></a>, <a href=\"/zh-CN/docs/Web/HTML/Element/col\"><code><col></code></a>, <a href=\"/zh-CN/docs/Web/HTML/Element/colgroup\"><code><colgroup></code></a>, <a href=\"/zh-CN/docs/Web/HTML/Element/table\"><code><table></code></a>, <a href=\"/zh-CN/docs/Web/HTML/Element/tbody\"><code><tbody></code></a>, <a class=\"only-in-en-us\" title=\"此页面目前仅提供英文版本\" href=\"/en-US/docs/Web/HTML/Element/td\"><code><td></code></a>, <a href=\"/zh-CN/docs/Web/HTML/Element/tfoot\"><code><tfoot></code></a>, <a href=\"/zh-CN/docs/Web/HTML/Element/th\"><code><th></code></a>, <a href=\"/zh-CN/docs/Web/HTML/Element/tr\"><code><tr></code></a>;</p>\n </li>\n <li>\n <p>CSS properties and pseudo-classes that may be specially useful to style the <code><thead></code> element:</p>\n <ul>\n <li>the <a href=\"/zh-CN/docs/Web/CSS/:nth-child\"><code>:nth-child</code></a> pseudo-class to set the alignment on the cells of the column;</li>\n <li>the <a href=\"/zh-CN/docs/Web/CSS/text-align\"><code>text-align</code></a> property to align all cells content on the same character, like '.'.<</li>\n </ul>\n </li>\n</ul>"}}],"toc":[{"text":"尝试一下","id":"尝试一下"},{"text":"属性","id":"属性"},{"text":"示例","id":"示例"},{"text":"规范","id":"规范"},{"text":"浏览器兼容性","id":"浏览器兼容性"},{"text":"参见","id":"参见"}],"summary":"HTML 的 <thead> 元素定义了一组定义表格的列头的行。","popularity":0.0026,"modified":"2024-07-27T04:21:30.000Z","other_translations":[{"locale":"de","title":"<thead>: Das Table Head Element","native":"Deutsch"},{"locale":"en-US","title":"<thead>: The Table Head element","native":"English (US)"},{"locale":"fr","title":"<thead>","native":"Français"},{"locale":"ja","title":"<thead>: 表ヘッダー要素","native":"日本語"},{"locale":"ko","title":"<thead>: 표 머릿글 요소","native":"한국어"}],"pageType":"unknown","source":{"folder":"zh-cn/web/html/element/thead","github_url":"https://github.com/mdn/translated-content/blob/main/files/zh-cn/web/html/element/thead/index.md","last_commit_url":"https://github.com/mdn/translated-content/commit/066f0b9f610a2a871f1ccb1ffd4dfaa8e5682798","filename":"index.md"},"short_title":"<thead>","parents":[{"uri":"/zh-CN/docs/Web","title":"面向开发者的 Web 技术"},{"uri":"/zh-CN/docs/Web/HTML","title":"HTML（超文本标记语言）"},{"uri":"/zh-CN/docs/Web/HTML/Element","title":"HTML 元素参考"},{"uri":"/zh-CN/docs/Web/HTML/Element/thead","title":"<thead>"}],"pageTitle":"<thead> - HTML（超文本标记语言） | MDN","noIndexing":false}}</script></body></html>