CINXE.COM

<!doctype html><html amp lang="en" i-amphtml-binding i-amphtml-layout i-amphtml-no-boilerplate transformed="self;v=1"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width"><link rel="preload" href="/static/fonts/poppins-v5-latin-700.woff2" as="font" crossorigin><link rel="preload" href="/static/fonts/noto-sans-v7-latin-700.woff2" as="font" crossorigin><meta name="theme-color" content="#005af0"><meta name="description" content="The AMP Project would not be possible without help from all members of the community whether you are a developer, content creator or provider of services relevant to AMP."><meta name="twitter:card" content="summary_large_image"><meta name="twitter:description" content="The AMP Project would not be possible without help from all members of the community whether you are a developer, content creator or provider of services relevant to AMP."><meta name="twitter:title" content="How to contribute"><meta name="twitter:creator" content="@ampproject"><meta name="twitter:site" content="@ampproject"><meta name="twitter:image" content="https://amp.dev/static/img/sharing/docs-guide-600x314.png"><meta property="og:title" content="How to contribute"><meta property="og:url" content="https://amp.dev/documentation/guides-and-tutorials/contribute/"><meta property="og:image" content="https://amp.dev/static/img/sharing/docs-guide-600x314.png"><meta property="og:image:width" content="600"><meta property="og:image:height" content="314"><meta name="supported-amp-formats" content="websites,stories,ads,email"><meta name="page-locale" content="en,pt_br,zh_cn"><meta http-equiv="origin-trial" content="AviuuiVhVdQ3GpVtxSpyMT+XsL/qGGYmyiyLvYSKPL3rRDLipe/ard5x+DXVlrATtolwX75VtpSKc9IEzLDd4AkAAABmeyJvcmlnaW4iOiJodHRwczovL2FtcC5kZXY6NDQzIiwiZmVhdHVyZSI6IkV4cGVyaW1lbnRhbEF1dG9wbGF5RHluYW1pY0RlbGVnYXRpb24iLCJleHBpcnkiOjE1NzA1Nzg0NDF9"><style amp-runtime i-amphtml-version="012406131415000">html{overflow-x:hidden!important}html.i-amphtml-fie{height:100%!important;width:100%!important}html:not([amp4ads]),html:not([amp4ads]) body{height:auto!important}html:not([amp4ads]) body{margin:0!important}body{-webkit-text-size-adjust:100%;-moz-text-size-adjust:100%;-ms-text-size-adjust:100%;text-size-adjust:100%}html.i-amphtml-singledoc.i-amphtml-embedded{-ms-touch-action:pan-y pinch-zoom;touch-action:pan-y pinch-zoom}html.i-amphtml-fie>body,html.i-amphtml-singledoc>body{overflow:visible!important}html.i-amphtml-fie:not(.i-amphtml-inabox)>body,html.i-amphtml-singledoc:not(.i-amphtml-inabox)>body{position:relative!important}html.i-amphtml-ios-embed-legacy>body{overflow-x:hidden!important;overflow-y:auto!important;position:absolute!important}html.i-amphtml-ios-embed{overflow-y:auto!important;position:static}#i-amphtml-wrapper{overflow-x:hidden!important;overflow-y:auto!important;position:absolute!important;top:0!important;left:0!important;right:0!important;bottom:0!important;margin:0!important;display:block!important}html.i-amphtml-ios-embed.i-amphtml-ios-overscroll,html.i-amphtml-ios-embed.i-amphtml-ios-overscroll>#i-amphtml-wrapper{-webkit-overflow-scrolling:touch!important}#i-amphtml-wrapper>body{position:relative!important;border-top:1px solid transparent!important}#i-amphtml-wrapper+body{visibility:visible}#i-amphtml-wrapper+body .i-amphtml-lightbox-element,#i-amphtml-wrapper+body[i-amphtml-lightbox]{visibility:hidden}#i-amphtml-wrapper+body[i-amphtml-lightbox] .i-amphtml-lightbox-element{visibility:visible}#i-amphtml-wrapper.i-amphtml-scroll-disabled,.i-amphtml-scroll-disabled{overflow-x:hidden!important;overflow-y:hidden!important}amp-instagram{padding:54px 0px 0px!important;background-color:#fff}amp-iframe iframe{box-sizing:border-box!important}[amp-access][amp-access-hide]{display:none}[subscriptions-dialog],body:not(.i-amphtml-subs-ready) [subscriptions-action],body:not(.i-amphtml-subs-ready) [subscriptions-section]{display:none!important}amp-experiment,amp-live-list>[update]{display:none}amp-list[resizable-children]>.i-amphtml-loading-container.amp-hidden{display:none!important}amp-list [fetch-error],amp-list[load-more] [load-more-button],amp-list[load-more] [load-more-end],amp-list[load-more] [load-more-failed],amp-list[load-more] [load-more-loading]{display:none}amp-list[diffable] div[role=list]{display:block}amp-story-page,amp-story[standalone]{min-height:1px!important;display:block!important;height:100%!important;margin:0!important;padding:0!important;overflow:hidden!important;width:100%!important}amp-story[standalone]{background-color:#000!important;position:relative!important}amp-story-page{background-color:#757575}amp-story .amp-active>div,amp-story .i-amphtml-loader-background{display:none!important}amp-story-page:not(:first-of-type):not([distance]):not([active]){transform:translateY(1000vh)!important}amp-autocomplete{position:relative!important;display:inline-block!important}amp-autocomplete>input,amp-autocomplete>textarea{padding:0.5rem;border:1px solid rgba(0,0,0,.33)}.i-amphtml-autocomplete-results,amp-autocomplete>input,amp-autocomplete>textarea{font-size:1rem;line-height:1.5rem}[amp-fx^=fly-in]{visibility:hidden}amp-script[nodom],amp-script[sandboxed]{position:fixed!important;top:0!important;width:1px!important;height:1px!important;overflow:hidden!important;visibility:hidden} /*# sourceURL=/css/ampdoc.css*/[hidden]{display:none!important}.i-amphtml-element{display:inline-block}.i-amphtml-blurry-placeholder{transition:opacity 0.3s cubic-bezier(0.0,0.0,0.2,1)!important;pointer-events:none}[layout=nodisplay]:not(.i-amphtml-element){display:none!important}.i-amphtml-layout-fixed,[layout=fixed][width][height]:not(.i-amphtml-layout-fixed){display:inline-block;position:relative}.i-amphtml-layout-responsive,[layout=responsive][width][height]:not(.i-amphtml-layout-responsive),[width][height][heights]:not([layout]):not(.i-amphtml-layout-responsive),[width][height][sizes]:not(img):not([layout]):not(.i-amphtml-layout-responsive){display:block;position:relative}.i-amphtml-layout-intrinsic,[layout=intrinsic][width][height]:not(.i-amphtml-layout-intrinsic){display:inline-block;position:relative;max-width:100%}.i-amphtml-layout-intrinsic .i-amphtml-sizer{max-width:100%}.i-amphtml-intrinsic-sizer{max-width:100%;display:block!important}.i-amphtml-layout-container,.i-amphtml-layout-fixed-height,[layout=container],[layout=fixed-height][height]:not(.i-amphtml-layout-fixed-height){display:block;position:relative}.i-amphtml-layout-fill,.i-amphtml-layout-fill.i-amphtml-notbuilt,[layout=fill]:not(.i-amphtml-layout-fill),body noscript>*{display:block;overflow:hidden!important;position:absolute;top:0;left:0;bottom:0;right:0}body noscript>*{position:absolute!important;width:100%;height:100%;z-index:2}body noscript{display:inline!important}.i-amphtml-layout-flex-item,[layout=flex-item]:not(.i-amphtml-layout-flex-item){display:block;position:relative;-ms-flex:1 1 auto;flex:1 1 auto}.i-amphtml-layout-fluid{position:relative}.i-amphtml-layout-size-defined{overflow:hidden!important}.i-amphtml-layout-awaiting-size{position:absolute!important;top:auto!important;bottom:auto!important}i-amphtml-sizer{display:block!important}@supports (aspect-ratio:1/1){i-amphtml-sizer.i-amphtml-disable-ar{display:none!important}}.i-amphtml-blurry-placeholder,.i-amphtml-fill-content{display:block;height:0;max-height:100%;max-width:100%;min-height:100%;min-width:100%;width:0;margin:auto}.i-amphtml-layout-size-defined .i-amphtml-fill-content{position:absolute;top:0;left:0;bottom:0;right:0}.i-amphtml-replaced-content,.i-amphtml-screen-reader{padding:0!important;border:none!important}.i-amphtml-screen-reader{position:fixed!important;top:0px!important;left:0px!important;width:4px!important;height:4px!important;opacity:0!important;overflow:hidden!important;margin:0!important;display:block!important;visibility:visible!important}.i-amphtml-screen-reader~.i-amphtml-screen-reader{left:8px!important}.i-amphtml-screen-reader~.i-amphtml-screen-reader~.i-amphtml-screen-reader{left:12px!important}.i-amphtml-screen-reader~.i-amphtml-screen-reader~.i-amphtml-screen-reader~.i-amphtml-screen-reader{left:16px!important}.i-amphtml-unresolved{position:relative;overflow:hidden!important}.i-amphtml-select-disabled{-webkit-user-select:none!important;-ms-user-select:none!important;user-select:none!important}.i-amphtml-notbuilt,[layout]:not(.i-amphtml-element),[width][height][heights]:not([layout]):not(.i-amphtml-element),[width][height][sizes]:not(img):not([layout]):not(.i-amphtml-element){position:relative;overflow:hidden!important;color:transparent!important}.i-amphtml-notbuilt:not(.i-amphtml-layout-container)>*,[layout]:not([layout=container]):not(.i-amphtml-element)>*,[width][height][heights]:not([layout]):not(.i-amphtml-element)>*,[width][height][sizes]:not([layout]):not(.i-amphtml-element)>*{display:none}amp-img:not(.i-amphtml-element)[i-amphtml-ssr]>img.i-amphtml-fill-content{display:block}.i-amphtml-notbuilt:not(.i-amphtml-layout-container),[layout]:not([layout=container]):not(.i-amphtml-element),[width][height][heights]:not([layout]):not(.i-amphtml-element),[width][height][sizes]:not(img):not([layout]):not(.i-amphtml-element){color:transparent!important;line-height:0!important}.i-amphtml-ghost{visibility:hidden!important}.i-amphtml-element>[placeholder],[layout]:not(.i-amphtml-element)>[placeholder],[width][height][heights]:not([layout]):not(.i-amphtml-element)>[placeholder],[width][height][sizes]:not([layout]):not(.i-amphtml-element)>[placeholder]{display:block;line-height:normal}.i-amphtml-element>[placeholder].amp-hidden,.i-amphtml-element>[placeholder].hidden{visibility:hidden}.i-amphtml-element:not(.amp-notsupported)>[fallback],.i-amphtml-layout-container>[placeholder].amp-hidden,.i-amphtml-layout-container>[placeholder].hidden{display:none}.i-amphtml-layout-size-defined>[fallback],.i-amphtml-layout-size-defined>[placeholder]{position:absolute!important;top:0!important;left:0!important;right:0!important;bottom:0!important;z-index:1}amp-img[i-amphtml-ssr]:not(.i-amphtml-element)>[placeholder]{z-index:auto}.i-amphtml-notbuilt>[placeholder]{display:block!important}.i-amphtml-hidden-by-media-query{display:none!important}.i-amphtml-element-error{background:red!important;color:#fff!important;position:relative!important}.i-amphtml-element-error:before{content:attr(error-message)}i-amp-scroll-container,i-amphtml-scroll-container{position:absolute;top:0;left:0;right:0;bottom:0;display:block}i-amp-scroll-container.amp-active,i-amphtml-scroll-container.amp-active{overflow:auto;-webkit-overflow-scrolling:touch}.i-amphtml-loading-container{display:block!important;pointer-events:none;z-index:1}.i-amphtml-notbuilt>.i-amphtml-loading-container{display:block!important}.i-amphtml-loading-container.amp-hidden{visibility:hidden}.i-amphtml-element>[overflow]{cursor:pointer;position:relative;z-index:2;visibility:hidden;display:initial;line-height:normal}.i-amphtml-layout-size-defined>[overflow]{position:absolute}.i-amphtml-element>[overflow].amp-visible{visibility:visible}template{display:none!important}.amp-border-box,.amp-border-box *,.amp-border-box :after,.amp-border-box :before{box-sizing:border-box}amp-pixel{display:none!important}amp-analytics,amp-auto-ads,amp-story-auto-ads{position:fixed!important;top:0!important;width:1px!important;height:1px!important;overflow:hidden!important;visibility:hidden}amp-story{visibility:hidden!important}html.i-amphtml-fie>amp-analytics{position:initial!important}[visible-when-invalid]:not(.visible),form [submit-error],form [submit-success],form [submitting]{display:none}amp-accordion{display:block!important}@media (min-width:1px){:where(amp-accordion>section)>:first-child{margin:0;background-color:#efefef;padding-right:20px;border:1px solid #dfdfdf}:where(amp-accordion>section)>:last-child{margin:0}}amp-accordion>section{float:none!important}amp-accordion>section>*{float:none!important;display:block!important;overflow:hidden!important;position:relative!important}amp-accordion,amp-accordion>section{margin:0}amp-accordion:not(.i-amphtml-built)>section>:last-child{display:none!important}amp-accordion:not(.i-amphtml-built)>section[expanded]>:last-child{display:block!important} /*# sourceURL=/css/ampshared.css*/</style><script async src="https://cdn.ampproject.org/v0.mjs" type="module" crossorigin="anonymous"></script><script async nomodule src="https://cdn.ampproject.org/v0.js" crossorigin="anonymous"></script><script async src="https://cdn.ampproject.org/v0/amp-analytics-0.1.mjs" custom-element="amp-analytics" type="module" crossorigin="anonymous"></script><script async nomodule src="https://cdn.ampproject.org/v0/amp-analytics-0.1.js" crossorigin="anonymous" custom-element="amp-analytics"></script><script async src="https://cdn.ampproject.org/v0/amp-animation-0.1.mjs" custom-element="amp-animation" type="module" crossorigin="anonymous"></script><script async nomodule src="https://cdn.ampproject.org/v0/amp-animation-0.1.js" crossorigin="anonymous" custom-element="amp-animation"></script><script async src="https://cdn.ampproject.org/v0/amp-bind-0.1.mjs" custom-element="amp-bind" type="module" crossorigin="anonymous"></script><script async nomodule src="https://cdn.ampproject.org/v0/amp-bind-0.1.js" crossorigin="anonymous" custom-element="amp-bind"></script><script async src="https://cdn.ampproject.org/v0/amp-consent-0.1.mjs" custom-element="amp-consent" type="module" crossorigin="anonymous"></script><script async nomodule src="https://cdn.ampproject.org/v0/amp-consent-0.1.js" crossorigin="anonymous" custom-element="amp-consent"></script><script async src="https://cdn.ampproject.org/v0/amp-geo-0.1.mjs" custom-element="amp-geo" type="module" crossorigin="anonymous"></script><script async nomodule src="https://cdn.ampproject.org/v0/amp-geo-0.1.js" crossorigin="anonymous" custom-element="amp-geo"></script><script async src="https://cdn.ampproject.org/v0/amp-install-serviceworker-0.1.mjs" custom-element="amp-install-serviceworker" type="module" crossorigin="anonymous"></script><script async nomodule src="https://cdn.ampproject.org/v0/amp-install-serviceworker-0.1.js" crossorigin="anonymous" custom-element="amp-install-serviceworker"></script><script async src="https://cdn.ampproject.org/v0/amp-position-observer-0.1.mjs" custom-element="amp-position-observer" type="module" crossorigin="anonymous"></script><script async nomodule src="https://cdn.ampproject.org/v0/amp-position-observer-0.1.js" crossorigin="anonymous" custom-element="amp-position-observer"></script><script async src="https://cdn.ampproject.org/v0/amp-sidebar-0.1.mjs" custom-element="amp-sidebar" type="module" crossorigin="anonymous"></script><script async nomodule src="https://cdn.ampproject.org/v0/amp-sidebar-0.1.js" crossorigin="anonymous" custom-element="amp-sidebar"></script><script async src="https://cdn.ampproject.org/v0/amp-user-notification-0.1.mjs" custom-element="amp-user-notification" type="module" crossorigin="anonymous"></script><script async nomodule src="https://cdn.ampproject.org/v0/amp-user-notification-0.1.js" crossorigin="anonymous" custom-element="amp-user-notification"></script><link rel="shortcut icon" href="/static/img/favicon.png"><link rel="canonical" href="https://amp.dev/documentation/guides-and-tutorials/contribute/"><link rel="alternate" hreflang="x-default" href="https://amp.dev/documentation/guides-and-tutorials/contribute/"><link rel="alternate" hreflang="de" href="https://amp.dev/de/documentation/guides-and-tutorials/contribute/"><link rel="alternate" hreflang="fr" href="https://amp.dev/fr/documentation/guides-and-tutorials/contribute/"><link rel="alternate" hreflang="ar" href="https://amp.dev/ar/documentation/guides-and-tutorials/contribute/"><link rel="alternate" hreflang="es" href="https://amp.dev/es/documentation/guides-and-tutorials/contribute/"><link rel="alternate" hreflang="it" href="https://amp.dev/it/documentation/guides-and-tutorials/contribute/"><link rel="alternate" hreflang="id" href="https://amp.dev/id/documentation/guides-and-tutorials/contribute/"><link rel="alternate" hreflang="ja" href="https://amp.dev/ja/documentation/guides-and-tutorials/contribute/"><link rel="alternate" hreflang="ko" href="https://amp.dev/ko/documentation/guides-and-tutorials/contribute/"><link rel="alternate" hreflang="pt_BR" href="https://amp.dev/pt_br/documentation/guides-and-tutorials/contribute/"><link rel="alternate" hreflang="ru" href="https://amp.dev/ru/documentation/guides-and-tutorials/contribute/"><link rel="alternate" hreflang="tr" href="https://amp.dev/tr/documentation/guides-and-tutorials/contribute/"><link rel="alternate" hreflang="zh_CN" href="https://amp.dev/zh_cn/documentation/guides-and-tutorials/contribute/"><link rel="alternate" hreflang="pl" href="https://amp.dev/pl/documentation/guides-and-tutorials/contribute/"><link rel="alternate" hreflang="vi" href="https://amp.dev/vi/documentation/guides-and-tutorials/contribute/"><title>How to contribute - amp.dev</title><script type="application/ld+json">{"@context":"http://schema.org","@type":"Webpage","url":"https://amp.dev/documentation/guides-and-tutorials/contribute/ ","name":"amp.dev","headline":"How to contribute","description":"The AMP Project would not be possible without help from all members of the community whether you are a developer, content creator or provider of services relevant to AMP.","mainEntityOfPage":{"@type":"WebPage","@id":"https://amp.dev"},"publisher":{"@type":"Organization","name":"AMP Project","logo":{"url":"https://amp.dev/static/img/icons/icon-512x512.png","width":512,"height":512,"@type":"ImageObject"}},"image":{"@type":"ImageObject","url":"https://amp.dev/static/img/sharing/docs-guide-600x314.png","width":600,"height":314}}</script><style amp-custom>@font-face{font-family:system;font-style:normal;font-weight:300;src:local(".SFNSText-Light"),local(".HelveticaNeueDeskInterface-Light"),local(".LucidaGrandeUI"),local("Ubuntu Light"),local("Segoe UI Light"),local("Roboto-Light"),local("DroidSans"),local("Tahoma")}@font-face{font-family:system;font-style:italic;font-weight:300;src:local(".SFNSText-LightItalic"),local(".HelveticaNeueDeskInterface-Italic"),local(".LucidaGrandeUI"),local("Ubuntu Light Italic"),local("Segoe UI Light Italic"),local("Roboto-LightItalic"),local("DroidSans"),local("Tahoma")}@font-face{font-family:system;font-style:normal;font-weight:400;src:local(".SFNSText-Regular"),local(".HelveticaNeueDeskInterface-Regular"),local(".LucidaGrandeUI"),local("Ubuntu"),local("Segoe UI"),local("Roboto-Regular"),local("DroidSans"),local("Tahoma")}@font-face{font-family:system;font-style:italic;font-weight:400;src:local(".SFNSText-Italic"),local(".HelveticaNeueDeskInterface-Italic"),local(".LucidaGrandeUI"),local("Ubuntu Italic"),local("Segoe UI Italic"),local("Roboto-Italic"),local("DroidSans"),local("Tahoma")}@font-face{font-family:system;font-style:normal;font-weight:500;src:local(".SFNSText-Medium"),local(".HelveticaNeueDeskInterface-MediumP4"),local(".LucidaGrandeUI"),local("Ubuntu Medium"),local("Segoe UI Semibold"),local("Roboto-Medium"),local("DroidSans-Bold"),local("Tahoma Bold")}@font-face{font-family:system;font-style:italic;font-weight:500;src:local(".SFNSText-MediumItalic"),local(".HelveticaNeueDeskInterface-MediumItalicP4"),local(".LucidaGrandeUI"),local("Ubuntu Medium Italic"),local("Segoe UI Semibold Italic"),local("Roboto-MediumItalic"),local("DroidSans-Bold"),local("Tahoma Bold")}@font-face{font-family:system;font-style:normal;font-weight:700;src:local(".SFNSText-Bold"),local(".HelveticaNeueDeskInterface-Bold"),local(".LucidaGrandeUI"),local("Ubuntu Bold"),local("Roboto-Bold"),local("DroidSans-Bold"),local("Segoe UI Bold"),local("Tahoma Bold")}@font-face{font-family:system;font-style:italic;font-weight:700;src:local(".SFNSText-BoldItalic"),local(".HelveticaNeueDeskInterface-BoldItalic"),local(".LucidaGrandeUI"),local("Ubuntu Bold Italic"),local("Roboto-BoldItalic"),local("DroidSans-Bold"),local("Segoe UI Bold Italic"),local("Tahoma Bold")}@font-face{font-family:Noto Sans;font-style:normal;font-weight:400;font-display:optional;src:local("Noto Sans"),local("NotoSans"),url(https://amp.dev/static/fonts/noto-sans-v7-latin-regular.woff2) format("woff2"),url(https://amp.dev/static/fonts/noto-sans-v7-latin-regular.woff) format("woff")}@font-face{font-family:Noto Sans;font-style:normal;font-weight:700;font-display:optional;src:local("Noto Sans Bold"),local("NotoSans-Bold"),url(https://amp.dev/static/fonts/noto-sans-v7-latin-700.woff2) format("woff2"),url(https://amp.dev/static/fonts/noto-sans-v7-latin-700.woff) format("woff")}@font-face{font-family:Poppins;font-style:normal;font-weight:700;font-display:optional;src:local("Poppins Bold"),local("Poppins-Bold"),url(https://amp.dev/static/fonts/poppins-v5-latin-700.woff2) format("woff2"),url(https://amp.dev/static/fonts/poppins-v5-latin-700.woff) format("woff")}@font-face{font-family:Fira Mono;font-style:normal;font-weight:400;font-display:optional;src:local("Fira Mono"),local("FiraMono"),url(https://amp.dev/static/fonts/fira-mono-v7-latin-500.woff2) format("woff2"),url(https://amp.dev/static/fonts/fira-mono-v7-latin-500.woff) format("woff")}*{box-sizing:border-box}body,html{padding:0;margin:0;min-width:240px;color:#48525c;background-color:#fff;font-size:16px;font-family:Noto Sans,system;overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;touch-action:manipulation}@media(max-width:240px){body,html{font-size:14px}}body>*>:not(.ap-o-code-preview)>*>.amp-carousel-button{width:3em;height:3em;border-radius:50%;box-shadow:0 10px 15px 0 rgba(0,0,0,.4);transition:.4s;background-color:#fff;position:relative;box-sizing:border-box;margin:1em;border-style:none;background-position:50% 50%;background-repeat:no-repeat;z-index:10;pointer-events:all}body>*>:not(.ap-o-code-preview)>*>.amp-carousel-button-prev{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' fill='%23005AF0'%3E%3Cpath d='M15 8.25H5.87l4.19-4.19L9 3 3 9l6 6 1.06-1.06-4.19-4.19H15v-1.5z'/%3E%3C/svg%3E")}body>*>:not(.ap-o-code-preview)>*>.amp-carousel-button-next{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' fill='%23005AF0' %3E%3Cpath d='M9 3L7.94 4.06l4.19 4.19H3v1.5h9.13l-4.19 4.19L9 15l6-6z'/%3E%3C/svg%3E")}body>*>:not(.ap-o-code-preview)>*>.amp-carousel-button:hover{cursor:pointer;box-shadow:0 20px 30px 0 rgba(0,0,0,.2);background-color:#fff}:target:before{content:"";display:block;visibility:hidden;height:120px;margin-top:-120px}@media(min-width:1024px){h1:target:before{height:75px;margin-top:-75px}h2:target:before{height:81px;margin-top:-81px}h3:target:before{height:87px;margin-top:-87px}h4:target:before{height:90px;margin-top:-90px}h5:target:before{height:93px;margin-top:-93px}h6:target:before{height:97px;margin-top:-97px}}h1,h2,h3,h4,h5{margin-top:1.5rem;margin-bottom:.75em;font-family:Poppins,system;font-weight:700;line-height:1.2em;color:#20202a}h1{font-size:2.2rem;margin-top:3rem}section.-t h1:first-of-type{margin-top:0}@media(min-width:768px){section.-t h1:first-of-type{margin-bottom:2rem}}h2{font-size:1.8rem;margin-top:2rem}h3{font-size:1.414rem;margin-top:1.8rem}h4{font-size:1.2rem}h5{font-size:1rem}.-t .intro,.ap--section .intro{font-size:1rem;padding:0}.-t .intro *,.ap--section .intro *{font-size:inherit}.-t p,.ap--section p{line-height:1.6rem;font-weight:400;color:#48525c;display:block;margin-top:1.1em;margin-bottom:0;font-size:1rem}.-t p small,.ap--section p small{font-size:.875rem}.-t code,.ap--section code{display:inline;padding:2px 4px;font-family:Fira Mono,monospace;font-weight:500;word-break:normal;color:#000;background-color:#e2e5e6;font-size:.9em}.-t code,.-t p,.ap--section code,.ap--section p{overflow-wrap:break-word}.-t a,.ap--section a{position:relative;z-index:10}.-t a code,.ap--section a code{color:#005af0;z-index:-1}.-t pre,.ap--section pre{font-family:Fira Mono,monospace;font-weight:500;font-size:1rem;white-space:pre-wrap}.-t>ol,.-t>ul,.ap--section>ol,.ap--section>ul{line-height:1.6rem;font-weight:400;color:#48525c;display:block;padding-left:2em;margin:1.5em 0}.-t>ol ol,.-t>ol ul,.-t>ul ol,.-t>ul ul,.ap--section>ol ol,.ap--section>ol ul,.ap--section>ul ol,.ap--section>ul ul{padding-left:2em;margin:0}.-t>ol li,.-t>ul li,.ap--section>ol li,.ap--section>ul li{padding-left:.5em}.-t>ol li p,.-t>ul li p,.ap--section>ol li p,.ap--section>ul li p{font-size:1em}.-t figure figcaption,.ap--section figure figcaption{line-height:1.6rem;font-weight:400;color:#48525c;font-size:.8125rem;margin-top:.3em}.-t hr,.ap--section hr{height:1px;margin:.75em 0;background-color:#ebebf0;border:none}.-n{display:flex;align-items:center;text-decoration:none;padding:0 0 1.5em;margin:0}.-r{line-height:1.6rem;font-weight:400;color:#48525c;font-size:.875rem;font-weight:700;color:#005af0;line-height:1.3;transition:transform .3s ease}.-i{fill:#005af0;padding:.438em 0;margin-bottom:auto;margin-right:.625em;box-sizing:initial;transition:transform .3s ease}.-n:hover .-i,.-n:hover .-r{transform:translateX(10px)}.-s{border-bottom:1px solid #ebebf0}.-s .-r{font-size:1rem;font-family:Poppins,system;font-weight:700;color:#000;padding-left:10px}.-s .-i{width:1.375em;height:1.375em;fill:#fff;background-color:#005af0;overflow:hidden;padding:.563em}.-s .-i,.-s:hover .-i{box-shadow:0 10px 20px 0 rgba(0,0,0,.25)}.-s:hover .-i svg{animation:duepduep .3s ease}a{font-weight:700;text-decoration:none;color:#005af0}a code{display:inline;padding:2px 4px;font-family:Fira Mono,monospace;font-weight:500;word-break:normal;color:#000;background-color:#e2e5e6;font-size:.9em;color:#005af0}.ap-a-ico{display:flex;font-size:medium;box-sizing:initial;justify-content:center;width:1em;height:1em}.ap-a-btn{font-family:Poppins,system;font-weight:700;line-height:1.2em;color:#20202a;font-size:1em;color:#fff;display:inline-block;max-width:100%;width:auto;height:auto;padding:.75em 1.75em;margin:0;text-decoration:none;text-align:center;border-radius:3px;background-color:#005af0;border:none;cursor:pointer;box-shadow:0 15px 35px -5px rgba(0,0,0,.25);transition:transform .3s ease,box-shadow .3s ease}.ap-a-btn:hover{transform:translateY(-.125em);box-shadow:0 25px 20px -15px rgba(0,0,0,.15)}@media(min-width:768px){.ap-a-btn{padding:1em 2em}}.-o{right:20px;left:auto;bottom:20px;width:calc(100% - 40px);padding:15px;line-height:1.6rem;font-weight:400;color:#48525c;font-size:.875rem;background-color:#fff;box-shadow:0 15px 30px 0 rgba(0,0,0,.15);border-radius:8px}@media(min-width:768px){.-o{max-width:500px}}.-u{position:absolute;right:15px;top:15px;-webkit-appearance:none;background-color:transparent;border:none;padding:0}.-u svg{width:10px;height:10px}.-o button{cursor:pointer}.ap--footer{position:relative;z-index:15;padding:3em 0 2em;line-height:1.6rem;font-weight:400;color:#48525c;font-size:1rem;color:#fff;background:linear-gradient(45deg,#48525c,#20202a)}.-a{width:100%;max-width:1440px;padding:0 20px;margin:0 auto}.-f{padding-bottom:4em}@media(min-width:768px){.-f{display:flex;align-items:center}}.-l{display:flex;flex-direction:column;margin-left:auto}@media(min-width:1024px){.-l{flex-direction:row}}.-c{margin:3em 2em 1em 0;color:#fff}@media(min-width:768px){.-c{margin:auto 2em auto 1em}}.-h{display:flex;list-style:none;padding:0;margin:0}.-p{flex:1 0 auto}@media(min-width:768px){.-p{margin:16px}}.-d{width:2.5em;height:2.5em;fill:#fff}@media(max-width:240px){.-d{font-size:14px}}@media(min-width:768px){.-v{display:grid;grid-gap:30px;grid-template-columns:repeat(12,1fr)}}.-m{flex:1 1 100%}.-m:nth-child(odd){grid-column:span 3}@media(max-width:1023px){.-m:nth-child(odd){grid-column:span 6}}.-m:nth-child(2n+2){grid-column:span 3}@media(max-width:1023px){.-m:nth-child(2n+2){grid-column:span 6}}.-g{color:#fff}.-y{list-style:none;padding:0}@media(min-width:768px){.-y+.-g{margin-top:2.5em}}.-b{position:relative}.-w{padding-left:35px;font-size:.8125rem;color:#fff}.-x{position:absolute;left:10px;top:8px;width:12px;height:12px;fill:#fff}.-k{display:flex;flex-direction:column;padding-top:4em}@media(min-width:768px){.-k{flex-direction:row;align-items:flex-end}}.-_{width:50%;max-width:200px;margin-bottom:40px;margin-right:auto}@media(min-width:768px){.-_{margin-bottom:0}}.-j{list-style:none;padding:0;margin:0}.-q{display:inline-block;margin-right:1em}.-z{font-size:.8125rem;font-weight:400;color:#fff}.-te{display:block;font-size:.875rem;margin-top:2em;color:#e2e5e6}.-te a{color:#fafafc}.ap-m-tutorial-progress{position:absolute;top:0;left:-4px;height:100%;width:2px;background-color:#e2e5e6}.ap-m-tutorial-progress-finished{background-color:#09a600}.ap-m-format-toggle{position:-webkit-sticky;position:sticky;top:0;margin:0 10px;padding:10px 0 0;width:100%;max-width:85%;z-index:12}@media(min-width:768px){.ap-m-format-toggle{padding:0;margin:0 15px 0 0;max-width:100%}}.ap-m-format-toggle-selected{border:0}.amp-mode-touch .ap-m-format-toggle-selected{position:relative}.ap-m-format-toggle-selected:focus:after,.ap-m-format-toggle-selected:hover:after{position:absolute;top:0;left:0;content:"";display:block;height:300%;width:100%}.ap-m-format-toggle-link,.ap-m-format-toggle-selected{z-index:3;display:flex;align-items:center;width:100%;margin:0 0 2px;padding:5px 8px;overflow:hidden;line-height:1.6rem;font-weight:400;color:#48525c;font-family:Poppins,system;font-weight:700;font-size:12px;text-align:left;border-radius:4px;color:#000;background:#ebebf0;transition:opacity .2s ease;box-shadow:0 5px 15px -5px rgba(0,0,0,.25)}.ap-m-format-toggle-link .ap-a-ico,.ap-m-format-toggle-selected .ap-a-ico{width:14px;height:14px;margin-right:8px;fill:#000}.ap-m-format-toggle-link{color:#000;background:#ebebf0}.ap-m-format-toggle-link .ap-a-ico{fill:#000}.ap-m-format-toggle-link-websites.ap-m-format-toggle-selected,.ap-m-format-toggle-link-websites:hover{background:linear-gradient(225deg,#00dcc0,#005af0 75%);color:#fff}.ap-m-format-toggle-link-websites.ap-m-format-toggle-selected .ap-a-ico,.ap-m-format-toggle-link-websites:hover .ap-a-ico{fill:#fff}.ap-m-format-toggle-link-stories.ap-m-format-toggle-selected,.ap-m-format-toggle-link-stories:hover{background:linear-gradient(225deg,#ec6600,#ffdc00 75%);color:#20202a}.ap-m-format-toggle-link-stories.ap-m-format-toggle-selected .ap-a-ico,.ap-m-format-toggle-link-stories:hover .ap-a-ico{fill:#20202a}.ap-m-format-toggle-link-ads.ap-m-format-toggle-selected,.ap-m-format-toggle-link-ads:hover{background:linear-gradient(225deg,#eb49e1,#5500d7 75%);color:#fff}.ap-m-format-toggle-link-ads.ap-m-format-toggle-selected .ap-a-ico,.ap-m-format-toggle-link-ads:hover .ap-a-ico{fill:#fff}.ap-m-format-toggle-link-email.ap-m-format-toggle-selected,.ap-m-format-toggle-link-email:hover{background:linear-gradient(225deg,#09a600,#e1eb64 75%);color:#20202a}.ap-m-format-toggle-link-email.ap-m-format-toggle-selected .ap-a-ico,.ap-m-format-toggle-link-email:hover .ap-a-ico{fill:#20202a}.ap-m-format-toggle-angle{margin-right:0;margin-left:auto}.ap-m-format-toggle-formats{position:absolute;width:100%;z-index:2;pointer-events:none;opacity:0;transform:translateY(-20px);transition:all .2s ease;transition-delay:.05s}.ap-m-format-toggle-formats:focus-within,.ap-m-format-toggle-formats:hover,.ap-m-format-toggle-selected:focus+.ap-m-format-toggle-formats,.ap-m-format-toggle-selected:hover+.ap-m-format-toggle-formats{pointer-events:auto;opacity:1;transform:translateY(0)}body{top:0;left:0;background-repeat:no-repeat;background-size:100% auto;background-position:100% 0;background-attachment:fixed}body.ap--websites{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1024 768'%3E%3Cdefs%3E%3ClinearGradient id='a' x1='239.67' y1='855.23' x2='606.28' y2='-152.04' gradientUnits='userSpaceOnUse'%3E%3Cstop offset='0' stop-color='%23fff' stop-opacity='0'/%3E%3Cstop offset='1' stop-color='%23d5e6f2'/%3E%3C/linearGradient%3E%3C/defs%3E%3Cg%3E%3Cpath fill='url(%23a)' d='M0 0h1024v214L786.37 768H0V0z'/%3E%3C/g%3E%3C/svg%3E%0A")}body.ap--ads{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1024 768'%3E%3Cdefs%3E%3ClinearGradient id='a' x1='239.67' x2='606.28' y1='855.23' y2='-152.04' gradientUnits='userSpaceOnUse'%3E%3Cstop offset='0' stop-color='%23fff' stop-opacity='0'/%3E%3Cstop offset='1' stop-color='%23ddd3eb'/%3E%3C/linearGradient%3E%3C/defs%3E%3Cg%3E%3Cpath fill='url(%23a)' d='M0 0h1024v214L786.37 768H0V0z'/%3E%3C/g%3E%3C/svg%3E%0A")}body.ap--stories{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1024 768'%3E%3Cdefs%3E%3ClinearGradient id='a' x1='239.67' x2='606.28' y1='855.23' y2='-152.04' gradientUnits='userSpaceOnUse'%3E%3Cstop offset='0' stop-color='%23fff' stop-opacity='0'/%3E%3Cstop offset='1' stop-color='%23ebdfd3'/%3E%3C/linearGradient%3E%3C/defs%3E%3Cg%3E%3Cpath fill='url(%23a)' d='M0 0h1024v214L786.37 768H0V0z'/%3E%3C/g%3E%3C/svg%3E%0A")}body.ap--email{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1024 768'%3E%3Cdefs%3E%3ClinearGradient id='a' x1='239.67' x2='606.28' y1='855.23' y2='-152.04' gradientUnits='userSpaceOnUse'%3E%3Cstop offset='0' stop-color='%23fff' stop-opacity='0'/%3E%3Cstop offset='1' stop-color='%23d7ebd3'/%3E%3C/linearGradient%3E%3C/defs%3E%3Cg%3E%3Cpath fill='url(%23a)' d='M0 0h1024v214L786.37 768H0V0z'/%3E%3C/g%3E%3C/svg%3E%0A")}.ap--ampsidebar{width:100%;max-width:90vw;background:#fafafc}.ap--ampsidebar-toolbar{top:86px;height:100vh;max-height:calc(100vh - 86px)}@media(min-width:768px){.ap--ampsidebar-toolbar{position:-webkit-sticky;position:sticky;overflow:auto}}.ap--ampsidebar-toolbar>ul{-webkit-overflow-scrolling:touch;margin:0;padding:0}@media(min-width:768px){.ap--ampsidebar-toolbar>ul{overflow:auto;max-height:100%}}.ap--ampsidebar-toolbar>ul::-webkit-scrollbar{width:6px;height:6px}.ap--ampsidebar-toolbar>ul::-webkit-scrollbar-thumb{border-radius:3px;background-color:#91979d}.ap--ampsidebar-toolbar>ul::-webkit-scrollbar-corner{background-color:transparent}.ap--ampsidebar-toolbar>ul::-webkit-scrollbar-thumb{background-color:rgba(0,0,0,.1)}.ap-o-sidebar-default{max-width:100%}@media(min-width:768px){.ap-o-sidebar-default .ap-o-sidebar{width:auto;min-height:400px;padding-bottom:0;margin-right:0;margin-left:-10px;background:0 0;box-shadow:none}}.ap-o-sidebar-default .nav{margin:15px 0 0;padding-bottom:15px}.ap-o-sidebar-default .nav-list{max-width:300px;list-style:none;padding:0;margin:0}.ap-o-sidebar-default .nav-list.level-1{margin:0 15px}.ap-o-sidebar-default .nav-list .nav-list{display:none;margin-bottom:20px}.ap-o-sidebar-default .nav-item{position:relative;margin:0;padding:0}.ap-o-sidebar-default .nav-item.level-1{border-bottom:1px solid rgba(0,0,0,.15)}.ap-o-sidebar-default .nav-item.level-1:last-child{border-bottom:none}.ap-o-sidebar-default .nav-item.level-1 .nav-link{padding:10px 25px 10px 20px;text-transform:uppercase;font-size:1.125rem;font-family:Poppins,system;font-weight:700;color:#000}.ap-o-sidebar-default .nav-item.level-1 .nav-icon,.ap-o-sidebar-default .nav-item.level-1 .nav-trigger{height:46px}.ap-o-sidebar-default .nav-item.level-1 .nav-icon .ap-a-ico{margin-top:16px}.ap-o-sidebar-default .nav-item.level-2 .nav-link{padding:7px 25px 8px 20px;text-transform:unset;line-height:1.6rem;font-weight:400;color:#48525c;font-family:Noto Sans,system;font-size:.875rem;line-height:1.4em}.ap-o-sidebar-default .nav-item.level-2 .nav-icon,.ap-o-sidebar-default .nav-item.level-2 .nav-trigger{height:33px}.ap-o-sidebar-default .nav-item.level-2 .nav-icon .ap-a-ico{width:10px;height:10px;margin-top:10px}.ap-o-sidebar-default .nav-item.level-3{margin-left:24px}.ap-o-sidebar-default .nav-item.level-3 .nav-link{padding:7px 25px 8px 20px;font-size:.8125rem}.ap-o-sidebar-default .nav-item.level-3.active{background:rgba(51,61,71,.1);border-radius:4px}.ap-o-sidebar-default .nav-item.active>.nav-link{font-weight:700;color:#005af0}.ap-o-sidebar-default .nav-item:hover>.nav-link{color:#005af0}.ap-o-sidebar-default .nav-item-tutorial-divider{border-bottom:1px dashed rgba(0,0,0,.15)}.ap-o-sidebar-default .nav-item-tutorial-divider:first-child,.ap-o-sidebar-default .nav-item-tutorial-divider:last-child{display:none}.ap-o-sidebar-default .nav-link{position:relative;display:block;padding:0;margin:0;color:rgba(0,0,0,.75);border:none;background-color:transparent}.ap-o-sidebar-default .nav-link-lastword{white-space:nowrap}.ap-o-sidebar-default .nav-icon,.ap-o-sidebar-default .nav-trigger{position:absolute;top:0;width:20px;padding:0;margin:0;background:none transparent;border:none;cursor:pointer}.ap-o-sidebar-default .nav-trigger{-webkit-appearance:none;z-index:1}.ap-o-sidebar-default .nav-trigger:checked~ul{display:block}.ap-o-sidebar-default .nav-trigger:checked+.nav-icon .ap-a-ico{transform:rotate(0)}.ap-o-sidebar-default .nav-trigger:focus{outline:1px dotted #212121;outline:5px auto -webkit-focus-ring-color}.ap-o-sidebar-default .nav-icon .ap-a-ico{width:12px;height:12px;transform:rotate(-90deg)}.ap-o-sidebar-default .nav-type-icon{display:inline-block;vertical-align:top;width:20px;height:20px;margin-left:6px}.ap-o-sidebar-default .nav span.nav-link+.nav-trigger{width:calc(100% + 15px)}.ap-breadcrumbs,.-ou{display:flex;align-items:center;font-family:Poppins,system;font-weight:700;font-size:.8125rem}.ap-breadcrumbs-angle,.-oa{width:10px;height:10px;margin:0 6px;transform:rotate(-90deg)}.ap--toc{width:100%}@media(min-width:1024px){.ap--toc{background:0 0;box-shadow:none;padding-right:10px}}.ap-o-toc{--spacing-top:90px;position:relative;z-index:1;top:0;right:0;width:calc(100% - 20px);overflow-y:auto;-webkit-overflow-scrolling:touch;background-color:#fff;box-shadow:0 2px 10px 0 rgba(0,0,0,.07);border-radius:8px;padding:15px;margin-bottom:10px}.ap-o-toc::-webkit-scrollbar{width:6px;height:6px}.ap-o-toc::-webkit-scrollbar-thumb{border-radius:3px;background-color:#91979d}.ap-o-toc::-webkit-scrollbar-corner{background-color:transparent}.ap-o-toc::-webkit-scrollbar-thumb{background-color:rgba(0,0,0,.1)}@media(min-width:768px){.ap-o-toc{width:100%}}@media(min-width:1024px){.ap-o-toc{position:-webkit-sticky;position:sticky;z-index:1;padding:0 10px 0 0;margin:0;height:auto;top:var(--spacing-top);right:auto;padding-bottom:var(--spacing-top);background:0 0;box-shadow:none;overflow-y:scroll;max-height:calc(100vh - var(--spacing-top))}}.ap-o-toc-hl{font-family:Poppins,system;font-weight:700;cursor:pointer;width:100%;margin-bottom:0}@media(min-width:1024px){.ap-o-toc-hl{margin-bottom:10px}}.ap-o-toc-toggle{display:flex;align-items:center;justify-content:space-between;outline:0}@media(min-width:1024px){.ap-o-toc-toggle{position:-webkit-sticky;position:sticky;top:0;background:#fafafc}}.ap-o-toc ul{list-style:none;margin:0;padding:0;transition:.4s}.ap-o-toc ul>li a{display:block;padding-bottom:20px;line-height:1.6rem;font-weight:400;color:#48525c;font-size:.8125rem;font-weight:700;line-height:1rem}.ap-o-toc ul>li>ul{padding-left:10px;text-transform:none}.ap-o-toc ul>li>ul li a{font-weight:400}@media(max-width:1023px){.ap-o-toc .-of:not(:checked)+ul{display:none;transition:.2s}.ap-o-toc .-of:checked+ul{margin-top:15px}}.ap-o-toc .nav-icon svg{width:15px;height:15px}@media(min-width:1024px){.ap-o-toc .nav-icon{display:none}}.ap-o-toc .nav-icon .ap-a-ico{display:inline-block;transform:rotate(-90deg)}.ap-o-toc.contentmenuopen .nav-icon .ap-a-ico{transform:rotate(0)}#sidebar-left[aria-hidden=true]:not([hidden])~.ap--main .-ol{animation:moveSidebarToggleBackwards .233s cubic-bezier(0,0,.21,1) forwards}#sidebar-left[aria-hidden=true]:not([hidden])~.ap--main .-ol .label-icon svg{transform:rotate(180deg)}#sidebar-left[aria-hidden=true]:not([hidden])~.ap--main .-ol .label-title{transform:translateX(0) scaleX(1);transform-origin:left center}#sidebar-left[open]~.ap--main .-ol{left:0;margin-left:0;animation:moveSidebarToggleForwards .233s cubic-bezier(0,0,.21,1) forwards}#sidebar-left[open]~.ap--main .-ol .label-icon svg{transform:rotate(0)}#sidebar-left[open]~.ap--main .-ol .label-title{transform:translateX(-150vw) scaleX(0);transform-origin:left center}#sidebar-left[aria-hidden=true]:not([hidden])~.ap--main .-ol,#sidebar-left[open]~.ap--main .-ol{z-index:9999999999}.-oc{position:absolute;top:50px}.-oh{position:fixed;top:-99px}.-op{position:fixed;z-index:15;font-size:12px;font-family:Poppins,system;font-weight:700;color:#fff;fill:#fff;cursor:pointer;display:flex;align-items:center}.-op .label-icon{border-radius:4px;background:#005af0;height:35px;width:32px;padding-left:2px;display:flex;justify-content:center;align-items:center;box-shadow:0 10px 20px -5px rgba(0,0,0,.25);z-index:1}.-op .label-icon svg{height:14px;width:14px;transition:transform .233s cubic-bezier(0,0,.21,1)}.-op .label-title{left:32px;display:flex;align-items:center;height:35px;margin-left:-5px;padding:5px 10px 5px 5px;white-space:nowrap;border-radius:0 4px 4px 0;background:#005af0;box-shadow:0 10px 20px -5px rgba(0,0,0,.25);transform:scaleX(0);transform-origin:left;transition:transform .233s cubic-bezier(0,0,.21,1)}.-od{position:fixed;top:-99px}.-ol{margin-top:-52px;margin-left:-25px}@media(min-width:768px){.-ol{display:none}}.-ol .label-icon svg{transform:rotate(180deg)}.-ov{display:none}.-om{position:fixed;top:-99px}.-og{display:none}@media(min-width:768px)and (max-width:1440px){.-ov{display:inline-block}.-og{position:-webkit-sticky;position:sticky;top:138px;display:inline-flex;transform:translate(-40px,-52px)}.-om:checked~.-oy{grid-column:1/2}.-om:checked~.-oy nav{display:none}.-om:checked~.-oy svg{transform:rotate(180deg)}}@media(min-width:768px)and (max-width:1440px)and (max-width:1023px){.-om:checked~.ap--toc{grid-column:2/25}}@media(min-width:768px)and (max-width:1440px){.-om:checked~.ap--toc~.-t{padding-left:80px;padding-right:80px;grid-column:2/20}}@media(min-width:768px)and (max-width:1440px)and (max-width:1023px){.-om:checked~.ap--toc~.-t{grid-column:2/25}}@media(min-width:768px)and (max-width:1440px){.-om:checked~.-t,.-om:checked~.ap--help{grid-column-start:2;padding-left:80px;padding-right:80px}.-om:checked~.-t .-og,.-om:checked~.ap--help .-og{margin-left:-88px}.-om:checked~.-t .-og .label-icon svg,.-om:checked~.ap--help .-og .label-icon svg{transform:rotate(180deg)}}.-fd{display:none}.-fv.amp-active~.-fd{height:42px;max-width:2020px;margin:0 auto;color:#fff;background-color:#20202a;font-size:.875rem;z-index:100;position:absolute;width:100%;left:0;right:0}@media(min-width:768px){.-fv.amp-active~.-fd{display:block}}.-fv.amp-active~.-fd .-fm{position:relative;display:flex;align-items:center;width:100%;height:100%;max-width:1440px;padding:0 30px;margin:0 auto}@media(min-width:1024px){.-fv.amp-active~.-fd .-fm{padding:0 15px}}.-fv.amp-active~.-fd .-fm:after{position:absolute;content:"";top:42px;left:50px;width:0;height:0;border-color:#20202a transparent transparent;border-style:solid;border-width:8px 10px 0}.-fv.amp-active~.-fd .-fg{flex:1 0;padding-right:10px}.-fv.amp-active~.-fd .-fy{height:20px;width:20px;background-color:transparent;border:0;cursor:pointer;padding:3px}.-fv.amp-active~.-fd .-fy svg{fill:#fff;width:100%;height:100%}.ap-o-burger-menu{display:none;position:fixed;top:0;left:0;width:100vw;height:100vh;padding:110px 20px 80px;z-index:16;background-color:#fff}@media(max-width:240px){.ap-o-burger-menu{padding:37px 20px 0}.has-banner~.ap-o-burger-menu{padding:calc(37px + 31px) 0 0 20px}}.ap-o-burger-menu-label{position:fixed;z-index:1001;top:12px;right:20px;cursor:pointer}.ap-o-burger-menu-label.mainmenuopen{z-index:1004}.has-banner+.ap-o-burger-menu-label{top:calc(12px + 31px)}.amp-hidden+.has-banner+.ap-o-burger-menu-label,amp-user-notification[hidden]+.has-banner+.ap-o-burger-menu-label{top:12px}@media(min-width:768px){.ap-o-burger-menu-label{right:30px}}@media(min-width:1024px){.ap-o-burger-menu-label{display:none}}.ap-o-burger-menu-icon{width:30px;height:30px}@media(min-width:1024px){.ap-o-burger-menu{display:none}}.ap-o-burger-menu.mainmenuopen{display:block;z-index:1003}.ap-o-burger-menu.mainmenuopen~.ap--main{max-height:calc(100vh - 55px)}.has-banner+.ap-o-burger-menu.mainmenuopen~.ap--main{max-height:calc(100vh - 55px - 31px)}.ap-o-burger-menu.mainmenuopen~.ap--footer{display:none}.-th{list-style:none;display:flex;flex-direction:column;height:100%;margin:1rem 0 0;padding:0;overflow-y:auto;-webkit-overflow-scrolling:touch}@media(max-width:240px){.-th{padding:1rem 0}}.-th .-th{margin-top:1rem}.-th .-th .-tp:last-child{margin-bottom:0}.-tp{margin-bottom:1rem;position:relative}.-tp:last-child{margin-top:auto}.-tp ul{display:none}.-td{position:absolute;left:0;top:0;width:100%;height:36px;padding:0;margin:0;background:none transparent;border:none;cursor:pointer;-webkit-appearance:none}.-td:focus{outline:5px auto -webkit-focus-ring-color}.-td:checked~ul{display:block}.-td:checked+.nav-icon .ap-a-ico{transform:rotate(0)}.-td+.nav-icon .ap-a-ico{display:inline-block;transform:rotate(-90deg)}.-tp .ap-a-ico{height:.6em;margin-bottom:.3em;margin-left:.3em;width:.6em}.-tv{position:relative;margin-right:20px;padding-bottom:10px;display:none}@media(max-width:240px){.-tv{margin-right:0}}@media(min-width:1024px){.-tv{margin-right:0;padding-right:30px;display:block}}.-tm{display:flex;align-items:center;font-size:11px;border:none;background:0 0}.-tm:hover{color:#005af0}.-tg{position:absolute;left:0;top:0;width:100%;height:100%;margin:0;padding:0;border:0;-webkit-appearance:none}@media(min-width:1024px){.-tg{width:calc(100% - 30px)}}.-ty{width:10px;height:10px;margin-left:5px}.-tb{list-style:none;display:none;position:absolute;right:15%;margin:0;padding:2px 8px;background:#fff;box-shadow:0 2px 10px 0 rgba(0,0,0,.07)}@media(max-width:240px){.-tb{overflow:auto;max-height:calc(100vh - 55px - 31px)}}.-tb:hover,.-tg:checked~.-tb,.-tg:hover~.-tb,.-tv .-tw{display:block}.-tb:focus-within{display:block}.mainmenuopen .-tv{display:block}.-tw{font-family:Poppins,system;font-weight:700;font-size:1.5em;color:#000}@media(min-width:1024px){.-tw{font-size:1rem}}.-tx{line-height:1.6rem;font-weight:400;color:#48525c;font-size:1rem}@media(min-width:1024px){.-tx{font-size:.875rem}}.-tx.active{text-decoration:underline}.-tw:hover{color:#005af0}.-tw.active{font-weight:700;color:#005af0}.ap--header{width:100%;max-width:2020px;margin:0 auto;position:-webkit-sticky;position:sticky;top:0;z-index:1001;background-color:#fff;box-shadow:0 2px 10px 0 rgba(0,0,0,.07)}.ap--header.mainmenuopen{z-index:1004}.ap--header.mainmenuopen~.ap--main{max-width:100vw;overflow-x:hidden}@media(min-width:1024px){.ap--header{top:0}.ap--header.has-banner{top:-31px}}.ap-o-header{display:flex;flex-direction:row;flex-wrap:nowrap;align-items:center;max-width:1460px;padding:10px 0 0 20px;margin:0 auto}@media(min-width:1024px){.ap-o-header{display:flex;padding-left:30px}}.ap-o-header-home{position:-webkit-sticky;position:sticky;top:10px;display:flex;align-items:center;margin-right:auto;padding-bottom:10px;overflow:hidden}.ap-o-header-home-logo{height:30px;margin-right:6px;width:30px}.ap-o-header-home-sub-title,.ap-o-header-home-title{margin-left:4px;font-family:Poppins,system;font-weight:700;font-size:1.5em;color:#005af0}@media(min-width:1024px){.ap-o-header-home-sub-title,.ap-o-header-home-title{font-size:1.125rem}}.ap-o-header-home-sub-title{color:#000;white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.ap-o-header-main{display:none;flex:1 1 auto;padding:0 30px}@media(min-width:1024px){.ap-o-header-main{display:flex}}.ap-o-header-main-item{position:relative;display:flex;align-items:center;margin:0 18px -5px}.ap-o-header-main-link{display:flex;align-items:center;padding:0 0 14px;border:0;background:0 0}.ap-o-header-main-link-icon{font-size:8px;margin-left:5px;transform:rotate(0);transition:transform .2s ease}.ap-o-header-flyout:hover,.ap-o-header-main-link:focus~.ap-o-header-flyout,.ap-o-header-main-link:hover~.ap-o-header-flyout{opacity:1;pointer-events:all;transition:opacity .2s ease}.ap-o-header-flyout:focus-within{opacity:1;pointer-events:all;transition:opacity .2s ease}.ap-o-header-flyout{box-shadow:0 10px 25px 0 rgba(0,0,0,.2);position:absolute;top:95%;left:0;margin:0;padding:0 0 10px;pointer-events:none;opacity:0;list-style:none;background:#fff;border-radius:0 0 4px 4px;transition:opacity .2s ease}.ap-o-header-flyout:before{content:"";display:block;background:linear-gradient(180deg,rgba(0,0,0,.07) 0,hsla(0,0%,100%,.07));height:8px;margin-bottom:10px}.ap-o-header-flyout-item-secondary{margin:20px 0;white-space:nowrap;min-width:200px}.ap-o-header-flyout-item-secondary a:hover{color:#005af0}.ap-o-header-flyout-item-title{line-height:1.6rem;font-weight:400;color:#48525c;font-size:.875rem;font-family:Poppins,system;font-weight:700;color:#000;line-height:1.4em}.ap-o-header-flyout-item-title.secondary{padding:0 15px}.ap-o-header-flyout-item-description{line-height:1.6rem;font-weight:400;color:#48525c;font-size:.8125rem;opacity:.75;line-height:1.25em}.ap-o-header-flyout-primary-item{position:relative;width:300px}.ap-o-header-flyout-primary-item:hover .ap-o-header-flyout-primary-item-link{box-shadow:0 10px 25px 0 rgba(0,0,0,.2);background-color:#005af0}.ap-o-header-flyout-primary-item:hover .ap-o-header-flyout-primary-item-link-info>*{color:#fff}.ap-o-header-flyout-primary-item:hover .ap-o-header-flyout-primary-item-link-info-stories .ap-o-header-flyout-item-description,.ap-o-header-flyout-primary-item:hover .ap-o-header-flyout-primary-item-link-info-stories .ap-o-header-flyout-item-title{color:#20202a}.ap-o-header-flyout-primary-item:hover .ap-o-header-flyout-primary-item-link-info-email .ap-o-header-flyout-item-description,.ap-o-header-flyout-primary-item:hover .ap-o-header-flyout-primary-item-link-info-email .ap-o-header-flyout-item-title{color:#20202a}.ap-o-header-flyout-primary-item:hover .ap-o-header-flyout-primary-item-link-icon{fill:#fff}.ap-o-header-flyout-primary-item:hover .ap-o-header-flyout-primary-item-link-icon.email,.ap-o-header-flyout-primary-item:hover .ap-o-header-flyout-primary-item-link-icon.stories{fill:#20202a}.ap-o-header-flyout-primary-item:hover .ap-o-header-flyout-primary-item-link.websites{background:linear-gradient(225deg,#00dcc0,#005af0 75%)}.ap-o-header-flyout-primary-item:hover .ap-o-header-flyout-primary-item-link.stories{background:linear-gradient(225deg,#ec6600,#ffdc00 75%)}.ap-o-header-flyout-primary-item:hover .ap-o-header-flyout-primary-item-link.ads{background:linear-gradient(225deg,#eb49e1,#5500d7 75%)}.ap-o-header-flyout-primary-item:hover .ap-o-header-flyout-primary-item-link.email{background:linear-gradient(225deg,#09a600,#e1eb64 75%)}.ap-o-header-flyout-primary-item-link{display:flex;align-items:center;border-radius:4px;padding:10px;margin:0 5px}.ap-o-header-flyout-primary-item-link-info{margin:0 20px 0 15px}.ap-o-header-flyout-primary-item-link-icon{display:flex;font-size:medium;box-sizing:initial;justify-content:center;width:2em;height:2em}.ap-o-header-flyout-primary-item-link-icon.websites{fill:url(#gradient-websites) #000}.ap-o-header-flyout-primary-item-link-icon.stories{fill:url(#gradient-stories) #000}.ap-o-header-flyout-primary-item-link-icon.ads{fill:url(#gradient-ads) #000}.ap-o-header-flyout-primary-item-link-icon.email{fill:url(#gradient-email) #000}#blm-banner{background:#111;color:#eee;display:block;text-align:center;padding:.5em}.ap--main>.-tf:first-child{padding-top:54px;padding-bottom:3rem}body{background-color:#fafafc}.-ao .-tf{position:relative;display:flex;flex-wrap:wrap;width:100%;max-width:1440px;padding:0 20px;margin-left:auto;margin-right:auto}@media(max-width:767px){.-ao .-tf{padding:0 15px}.-ao .-tf>div,.-ao .-tf section{min-width:0}}@media(min-width:768px){.-ao .-tf{display:grid;grid-gap:30px;grid-template-columns:repeat(24,minmax(0,1fr));padding:0 30px;grid-gap:0}}@media(min-width:1024px){.-ao .-tf{padding:0 15px}}.-ao .-t,.-ao .ap--help{grid-column:1;position:relative;width:100%;background:#fafafc}@media(min-width:768px){.-ao .-t,.-ao .ap--help{grid-column:9/25}}@media(min-width:1024px){.-ao .-t,.-ao .ap--help{grid-column:7/25}.-ao .-t p.limit,.-ao .ap--help p.limit{max-width:70%}}@media(min-width:768px){.-ao .-t,.-ao .ap--help{grid-column:8/25;padding-left:30px;padding-right:30px;padding-bottom:60px}}@media(min-width:1024px){.-ao .-t,.-ao .ap--help{grid-column:6/24;padding-left:30px;padding-bottom:60px}}.-ao .-oy{grid-column:auto;padding:0}@media(min-width:768px){.-ao .-oy{grid-column:1/8;grid-row:span 6;margin-right:20px}}@media(min-width:1024px){.-ao .-oy{grid-column:1/6}}.-ao .ap--toc{box-shadow:20px 25px 40px 0 rgba(0,0,0,.05)}.-ao .ap--toc~.-t{box-shadow:-30px -5px 30px -20px rgba(0,0,0,.05)}@media(min-width:768px){.-ao .ap--toc{grid-column:8/25}.-ao .ap--toc~.-t{padding-top:0}}@media(min-width:768px)and (min-width:768px){.-ao .ap--toc~.-t{grid-column:8/25;padding-left:30px}}@media(min-width:768px)and (min-width:1024px){.-ao .ap--toc~.-t{grid-column:6/20;padding-left:30px;padding-right:30px}}@media(min-width:768px)and (min-width:768px){.-ao .ap--toc~.ap--help~.-t{grid-column-end:25}}@media(min-width:768px)and (min-width:1024px){.-ao .ap--toc~.ap--help~.-t{grid-column-end:25}}@media(min-width:1024px){.-ao .ap--toc{background:#fafafc;grid-column:20/25;grid-row:span 3;padding-top:93px;padding-bottom:25px}.-ao .ap--toc~.-t{padding-top:62px}}@media(min-width:1024px)and (max-width:767px){.-ao .ap--toc~.-t{padding-left:15px;padding-right:15px}}.-ao .-oy+.-t,.-ao .ap--toc+.-t{padding-top:62px}@media(max-width:767px){.-ao .-oy+.-t,.-ao .ap--toc+.-t{padding-left:15px;padding-right:15px}}@media(min-width:1024px){.-ao .-oy+.-t:nth-of-type(2),.-ao .-oy+.-t:nth-of-type(3),.-ao .ap--toc+.-t:nth-of-type(2),.-ao .ap--toc+.-t:nth-of-type(3){grid-row:1}}@media(max-width:767px){.-ao .-oy~.-t,.-ao .ap--toc~.-t{padding-left:15px;padding-right:15px}}.-ao .-t amp-anim{box-shadow:0 30px 30px -15px rgba(0,0,0,.25)}@media screen and (max-width:575px){.-ao .-t figure{min-width:50vw}}.-ao .-t figure.alignment-wrapper{margin-top:1.6rem}.-ao .-t figure.left{text-align:left}.-ao .-t figure.center{text-align:center}.-ao .-t figure.right{text-align:right}@media(min-width:768px){.-ao .-t figure.half amp-img{width:50%}}.-ao .-t figure.third amp-img{width:50%}@media(min-width:768px){.-ao .-t figure.third amp-img{width:33%}}.-ao .-t figure.shadow amp-img{box-shadow:0 30px 30px -15px rgba(0,0,0,.25)}.-ao .-t figure amp-img{margin:0 auto}.-ao .-t figure figcaption{line-height:1.6rem;font-weight:400;color:#48525c;font-size:.8125rem;padding-top:20px;max-width:300px}.-ao .ap--chapter-indicator{display:flex;justify-content:space-between}.-ao .ap--chapter-indicator .ap-a-btn{margin:0 auto}.-ao .ap--chapter-indicator .ap--previous .-i{transform:scaleX(-1)}.-ao .ap--chapter-indicator .ap--next{justify-self:flex-end}.-ao .ap--chapter-indicator .ap--next .-i{margin-left:.625em;margin-right:0}.-ao .noshowtoc{display:none}.-ta{display:flex;overflow-x:auto;margin:1.1rem 0 0;padding:0 1em;color:#fff;line-height:1.3em;background:#20202a;font-size:.9em}.-ta:after{content:" ";-moz-user-select:none;-webkit-user-select:none;-ms-user-select:none;user-select:none}.-ta::-webkit-scrollbar{width:6px;height:6px}.-ta::-webkit-scrollbar-thumb{border-radius:3px;background-color:#91979d}.-ta::-webkit-scrollbar-corner{background-color:transparent}.-ta::-webkit-scrollbar-thumb{border-radius:0}@media(min-width:768px){.-ta{max-width:100%;margin-right:-30px}}.-ta code,.-ta pre{font-family:Fira Mono,monospace;font-weight:500;white-space:pre;font-size:.9rem;padding:unset;word-break:normal;color:inherit;background:0 0}.-ta .hll{background-color:#49483e}.-ta .c{color:#75715e}.-ta .k{color:#66d9ef}.-ta .l{color:#ae81ff}.-ta .n{color:#f8f8f2}.-ta .o{color:#f15a5a}.-ta .p{color:#f8f8f2}.-ta .c1,.-ta .ch,.-ta .cm,.-ta .cp,.-ta .cpf,.-ta .cs{color:#75715e}.-ta .gd{color:#f15a5a}.-ta .ge{font-style:italic}.-ta .gi{color:#a6e22e}.-ta .gs{font-weight:700}.-ta .gu{color:#75715e}.-ta .kc,.-ta .kd{color:#66d9ef}.-ta .kn{color:#f15a5a}.-ta .kp,.-ta .kr,.-ta .kt{color:#66d9ef}.-ta .ld{color:#e6db74}.-ta .m{color:#ae81ff}.-ta .s{color:#e6db74}.-ta .na{color:#a6e22e}.-ta .nb{color:#f8f8f2}.-ta .nc{color:#a6e22e}.-ta .no{color:#66d9ef}.-ta .nd{color:#a6e22e}.-ta .ni{color:#f8f8f2}.-ta .ne,.-ta .nf{color:#a6e22e}.-ta .nl,.-ta .nn{color:#f8f8f2}.-ta .nx{color:#fff}.-ta .py{color:#f8f8f2}.-ta .nt{color:#f15a5a}.-ta .nv{color:#f8f8f2}.-ta .ow{color:#f15a5a}.-ta .w{color:#f8f8f2}.-ta .mb,.-ta .mf,.-ta .mh,.-ta .mi,.-ta .mo{color:#ae81ff}.-ta .dl,.-ta .s2,.-ta .sa,.-ta .sb,.-ta .sc,.-ta .sd{color:#e6db74}.-ta .se{color:#ae81ff}.-ta .s1,.-ta .sh,.-ta .si,.-ta .sr,.-ta .ss,.-ta .sx{color:#e6db74}.-ta .bp{color:#f8f8f2}.-ta .fm{color:#a6e22e}.-ta .vc,.-ta .vg,.-ta .vi,.-ta .vm{color:#f8f8f2}.-ta .il{color:#ae81ff}table{table-layout:fixed;width:100%;position:relative;border-collapse:collapse;padding:0 0 0 20px;margin:1.5em -20px 2em;display:block;overflow-x:auto;-webkit-overflow-scrolling:touch;line-height:1.6rem;font-weight:400;color:#48525c;font-size:.875rem}@media(min-width:768px){table{padding:0;margin:1.5em 0 2em}}thead{font-weight:700}thead tr{text-align:left}thead tr th{padding:20px}tbody tr,thead tr th{border-bottom:1px solid #e2e5e6}tbody tr:nth-child(odd){background-color:hsla(0,0%,100%,.5)}tbody tr td:first-child{border-right:1px solid #e2e5e6}tbody td{padding:10px 20px;text-align:left;vertical-align:top;width:50%}@media(min-width:768px){tbody td{padding:20px}}@media(min-width:1024px){tbody td{width:25%}}tbody td code{display:inline;padding:2px 4px;font-family:Fira Mono,monospace;font-weight:500;word-break:normal;color:#000;background-color:#e2e5e6;font-size:.9em;color:#005af0}</style><link rel="manifest" href="/manifest.json"></head><body class="ap--websites"> <svg style="position: absolute; width: 0; height: 0; overflow: hidden;" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <defs> <symbol id="stackoverflow" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 19 25"><path d="M14.2 14.7h1.6V25H0V14.7h1.6v8.6h12.5c.1-2.8.1-5.7.1-8.6zM9.5 3.2c1.8 2.7 3.6 5.4 5.4 8.2.6-.4 1.1-.8 1.7-1.2C14.8 7.5 13 4.8 11.2 2c-.5.5-1.1.8-1.7 1.2zm5.1 8.5c-2.8-1.7-5.5-3.3-8.2-5-.4.6-.7 1.2-1.1 1.8 2.7 1.7 5.5 3.3 8.2 5 .4-.6.8-1.2 1.1-1.8zM17.4 0c-.7.1-1.3.2-2 .4.5 3.2 1.1 6.5 1.6 9.7.7-.1 1.3-.2 2-.4-.5-3.2-1.1-6.5-1.6-9.7zm-4 14.1c-3.1-.9-6.2-1.7-9.2-2.6-.2.7-.4 1.4-.5 2 3.1.9 6.2 1.7 9.2 2.6.1-.6.3-1.3.5-2zm-.9 5.5H3v2.1h9.5v-2.1zm.3-2.7c-3.2-.3-6.3-.6-9.5-.9-.1.7-.1 1.4-.2 2.1 3.2.3 6.3.6 9.5.9 0-.8.1-1.4.2-2.1z"/></symbol><symbol id="github" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"> <path d="M32 0.792c-17.68 0-32 14.328-32 32 0 14.141 9.168 26.133 21.88 30.36 1.6 0.301 2.187-0.688 2.187-1.539 0-0.76-0.027-2.773-0.040-5.44-8.901 1.931-10.779-4.293-10.779-4.293-1.456-3.693-3.56-4.68-3.56-4.68-2.899-1.984 0.224-1.944 0.224-1.944 3.213 0.224 4.901 3.296 4.901 3.296 2.853 4.893 7.491 3.48 9.32 2.661 0.288-2.069 1.112-3.48 2.027-4.28-7.107-0.8-14.576-3.552-14.576-15.813 0-3.493 1.24-6.347 3.293-8.587-0.36-0.808-1.44-4.061 0.28-8.469 0 0 2.68-0.859 8.8 3.28 2.56-0.712 5.28-1.064 8-1.080 2.72 0.016 5.44 0.368 8 1.080 6.080-4.139 8.76-3.28 8.76-3.28 1.72 4.408 0.64 7.661 0.32 8.469 2.040 2.24 3.28 5.093 3.28 8.587 0 12.293-7.48 15-14.6 15.787 1.12 0.96 2.16 2.923 2.16 5.92 0 4.283-0.040 7.723-0.040 8.763 0 0.84 0.56 1.84 2.2 1.52 12.803-4.197 21.963-16.197 21.963-30.317 0-17.672-14.328-32-32-32z"/> </symbol><symbol id="wordpress" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><path d="M57.251 18.2A28.688 28.688 0 0 1 60.766 32c0 10.611-5.749 19.883-14.301 24.867l8.787-25.405c1.64-4.107 2.187-7.389 2.187-10.304 0-1.08-.069-2.08-.187-2.96zm-21.283.277c1.725-.08 3.285-.28 3.285-.28 1.552-.2 1.371-2.48-.179-2.397 0 0-4.68.36-7.68.36-2.837 0-7.6-.4-7.6-.4-1.56-.08-1.763 2.28-.2 2.36 0 0 1.44.163 3 .24l4.48 12.28-6.32 18.88L14.277 18.4c1.731-.08 3.291-.267 3.291-.267 1.56-.2 1.376-2.48-.173-2.389 0 0-4.656.368-7.664.368-.533 0-1.168-.021-1.84-.04C13.096 8.4 21.96 3.24 32 3.24a28.642 28.642 0 0 1 19.429 7.555c-.123-.008-.243-.024-.376-.024-2.827 0-4.832 2.461-4.832 5.104 0 2.373 1.368 4.381 2.827 6.749 1.096 1.92 2.373 4.381 2.373 7.939 0 2.44-.944 5.317-2.189 9.277l-2.867 9.56-10.4-30.96.003.037zM32 60.757c-2.824 0-5.549-.408-8.128-1.165l8.632-25.083 8.84 24.232c.064.141.133.269.208.397A28.794 28.794 0 0 1 32 60.762zM3.229 32c0-4.171.896-8.133 2.493-11.707L19.439 57.89C9.85 53.226 3.231 43.389 3.228 31.999zM32 0C14.36 0 0 14.36 0 32s14.36 32 32 32 32-14.36 32-32S49.64 0 32 0z"/></symbol><symbol id="youtube" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><path d="M62.664 16.542c-.773-2.708-2.862-4.797-5.514-5.556l-.057-.014c-4.989-1.336-25.065-1.336-25.065-1.336s-20.026-.027-25.065 1.337c-2.708.773-4.797 2.862-5.556 5.514l-.014.057C.507 21.107 0 26.354 0 31.72l.001.327v-.017.252a83.84 83.84 0 0 0 1.475 15.695l-.083-.521c.773 2.708 2.862 4.797 5.513 5.556l.057.014c4.983 1.339 25.065 1.339 25.065 1.339s20.023 0 25.065-1.339c2.708-.773 4.797-2.862 5.556-5.514l.014-.057c.85-4.469 1.336-9.609 1.336-14.863l-.002-.595v.03c.002-.184.002-.403.002-.621 0-5.255-.486-10.396-1.416-15.38l.08.515zM25.621 41.608V22.42l16.71 9.609z"/></symbol><symbol id="twitter" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"> <path d="M63.875 12.186c-2.36 1.037-4.88 1.744-7.533 2.067 2.704-1.629 4.784-4.197 5.768-7.261-2.536 1.48-5.346 2.557-8.338 3.157-2.389-2.557-5.794-4.157-9.576-4.157-7.245 0-13.119 5.874-13.119 13.111 0 1.040 0.12 2.040 0.339 2.997-10.906-0.515-20.572-5.752-27.042-13.669-1.139 1.925-1.776 4.162-1.776 6.6 0 4.56 2.32 8.568 5.834 10.922-2.152-0.069-4.176-0.661-5.941-1.643v0.163c0 6.36 4.514 11.663 10.522 12.871-1.101 0.296-2.264 0.456-3.456 0.456-0.837 0-1.64-0.080-2.443-0.229 1.683 5.208 6.52 9.005 12.277 9.112-4.48 3.517-10.157 5.613-16.271 5.613-1.040 0-2.077-0.061-3.12-0.179 5.837 3.717 12.714 5.89 20.151 5.89 24.143 0 37.329-19.989 37.329-37.294 0-0.557 0-1.12-0.040-1.68 2.563-1.837 4.8-4.16 6.56-6.794l-0.125-0.053z"/> </symbol><symbol id="download" viewBox="0 0 64 64"> <path d="M8.8 62.32c0-0.88 0.72-1.68 1.68-1.68 10.8 0 32.32 0 43.040 0 0.88 0 1.68 0.72 1.68 1.68 0 0.88-0.72 1.68-1.68 1.68-10.8 0-32.32 0-43.040 0-0.96 0-1.68-0.72-1.68-1.68z"/> <path d="M49.44 34.56c0.72-0.72 0.72-1.84 0-2.56s-1.84-0.72-2.56 0l-13.040 13.040v-43.28c0-0.96-0.88-1.76-1.84-1.76-1.040 0-1.84 0.8-1.84 1.76v43.28l-13.040-13.12c-0.72-0.72-1.84-0.72-2.56 0s-0.72 1.84 0 2.56l16.24 16.24c0.72 0.72 1.84 0.72 2.56 0l16.080-16.16z"/> </symbol><symbol id="internal" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><path d="M43.16 10.18c-0.881-0.881-2.322-0.881-3.203 0s-0.881 2.322 0 3.203l16.335 16.335h-54.051c-1.281 0-2.242 1.041-2.242 2.242 0 1.281 0.961 2.322 2.242 2.322h54.051l-16.415 16.335c-0.881 0.881-0.881 2.322 0 3.203s2.322 0.881 3.203 0l20.259-20.259c0.881-0.881 0.881-2.322 0-3.203l-20.179-20.179z"/></symbol><symbol id="angle-down-light" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"> <path d="M0.662 19.607c-0.441-0.412-0.662-0.927-0.662-1.494s0.221-1.082 0.662-1.494c0.883-0.825 2.317-0.825 3.2 0l28.138 26.28 28.138-26.28c0.883-0.825 2.317-0.825 3.2 0s0.883 2.164 0 2.989l-29.738 27.775c-0.883 0.825-2.317 0.825-3.2 0l-29.738-27.775z"/> </symbol><symbol id="tutorial" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 16"><path fill="#005af0" d="M19.5 1.8h-1.4V.5c0-.1 0-.2-.1-.3-.1-.1-.2-.1-.3-.1h-5.9c-.7 0-1.4.3-1.8.9C9.6.4 8.9.1 8.2.1H2.3c-.1 0-.2 0-.3.1-.1.1-.1.2-.1.3v1.3H.5c-.1 0-.2 0-.3.1-.1.1-.1.2-.1.3v10.7c0 .1 0 .2.1.3s.2.1.3.1H5c2.5 0 3.3.7 4.6 2.5.1.1.2.2.4.2s.3-.1.4-.2c1.4-1.8 2.2-2.5 3.7-2.5h5.5c.1 0 .2 0 .3-.1s.1-.2.1-.3V2.2c0-.1 0-.2-.1-.3-.1-.1-.2-.1-.4-.1zM11.8.9h5.5v9.8h-5c-.7 0-1.3.3-1.8.8V2.2c0-.7.6-1.3 1.3-1.3zM2.7.9h5.5c.8 0 1.4.6 1.4 1.3v9.3c-.5-.5-1.1-.9-1.8-.9h-5V.9zm16.4 11.5h-5c-1.9 0-2.9.9-4.1 2.4-1.2-1.5-2.3-2.4-5-2.4H.9V2.6h.9V11c0 .1 0 .2.1.3s.2.1.3.1h5.5c.7 0 1.5.8 1.9 1.5.1.2.2.2.4.2h.1c.1 0 .2-.1.3-.2.4-.7 1.1-1.5 1.9-1.5h5.5c.1 0 .2 0 .3-.1s.1-.2.1-.3V2.6h.9v9.8zm-5.6-8.5c-.3 0-.5-.2-.5-.4s.2-.4.5-.4.5.2.5.4c-.1.2-.3.4-.5.4zm0 4.7c-.1 0-.2 0-.3-.1s-.1-.2-.1-.3V5.5c0-.2.2-.4.5-.4s.5.2.5.4v2.7c0 .1 0 .2-.1.3s-.4.1-.5.1zm-9-3.7c-.3 0-.5-.2-.5-.4s.2-.4.5-.4h3.2c.3 0 .5.2.5.4s-.2.4-.5.4H4.5zm0 2c-.3 0-.5-.2-.5-.4s.2-.4.5-.4h3.2c.3 0 .5.2.5.4s-.2.4-.5.4H4.5zm0 2c-.3 0-.5-.2-.5-.4s.2-.4.5-.4h3.2c.3 0 .5.2.5.4s-.2.4-.5.4H4.5z"/></symbol><symbol id="sidebar-toggle" viewBox="0 0 64 64"> <path d="M36.032 7.9c0.985-0.996 2.624-0.996 3.643 0 0.985 0.963 0.985 2.565 0 3.526l-18.471 18.060h40.246c1.421 0.002 2.55 1.107 2.55 2.496s-1.129 2.529-2.55 2.529h-40.246l18.471 18.026c0.985 0.996 0.985 2.601 0 3.562-1.019 0.996-2.66 0.996-3.643 0l-22.844-22.336c-1.019-0.963-1.019-2.565 0-3.526l22.844-22.338z"/> <path d="M2.071 3.012c1.144 0 2.071 0.927 2.071 2.071v53.835c0 1.144-0.927 2.071-2.071 2.071s-2.071-0.927-2.071-2.071v-53.835c0-1.144 0.927-2.071 2.071-2.071z"/> </symbol><symbol id="contentmenu" viewBox="0 0 64 64"> <path d="M1.351 46.865h36.036c0.746 0 1.351 0.605 1.351 1.351s-0.605 1.351-1.351 1.351h-36.036c-0.746 0-1.351-0.605-1.351-1.351s0.605-1.351 1.351-1.351zM1.351 14.432h40.541c0.746 0 1.351 0.605 1.351 1.351s-0.605 1.351-1.351 1.351h-40.541c-0.746 0-1.351-0.605-1.351-1.351s0.605-1.351 1.351-1.351zM1.351 38.757h31.532c0.746 0 1.351 0.605 1.351 1.351s-0.605 1.351-1.351 1.351h-31.532c-0.746 0-1.351-0.605-1.351-1.351s0.605-1.351 1.351-1.351zM1.351 30.649h37.838c0.746 0 1.351 0.605 1.351 1.351s-0.605 1.351-1.351 1.351h-37.838c-0.746 0-1.351-0.605-1.351-1.351s0.605-1.351 1.351-1.351zM1.351 22.541h34.234c0.746 0 1.351 0.605 1.351 1.351s-0.605 1.351-1.351 1.351h-34.234c-0.746 0-1.351-0.605-1.351-1.351s0.605-1.351 1.351-1.351zM52.249 29.371c-0.992 0-1.231-0.566-0.525-1.272l5.296-5.296c0.353-0.353 0.931-0.348 1.279 0l5.296 5.296c0.702 0.702 0.466 1.272-0.525 1.272h-10.822zM63.069 35.153c0.992 0 1.231 0.566 0.525 1.272l-5.296 5.296c-0.353 0.353-0.931 0.348-1.279 0l-5.296-5.296c-0.702-0.702-0.466-1.272 0.525-1.272h10.822z"/> </symbol><symbol id="close" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"> <path d="M39.503 32l22.963-22.963c2.046-2.046 2.046-5.457 0-7.503s-5.456-2.046-7.503 0l-22.963 22.963-22.963-22.963c-2.046-2.046-5.457-2.046-7.503 0s-2.046 5.457 0 7.503l22.963 22.963-22.963 22.963c-2.046 2.046-2.046 5.456 0 7.503s5.457 2.046 7.503 0l22.963-22.963 22.963 22.963c2.046 2.046 5.456 2.046 7.503 0s2.046-5.456 0-7.503l-22.963-22.963z"/> </symbol><symbol id="menu" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"> <path d="M2.133 13.867h59.733c1.178 0 2.133 0.955 2.133 2.133v2.133c0 1.178-0.955 2.133-2.133 2.133h-59.733c-1.178 0-2.133-0.955-2.133-2.133v-2.133c0-1.178 0.955-2.133 2.133-2.133z"/> <path d="M2.133 28.8h59.733c1.178 0 2.133 0.955 2.133 2.133v2.133c0 1.178-0.955 2.133-2.133 2.133h-59.733c-1.178 0-2.133-0.955-2.133-2.133v-2.133c0-1.178 0.955-2.133 2.133-2.133z"/> <path d="M2.133 43.733h59.733c1.178 0 2.133 0.955 2.133 2.133v2.133c0 1.178-0.955 2.133-2.133 2.133h-59.733c-1.178 0-2.133-0.955-2.133-2.133v-2.133c0-1.178 0.955-2.133 2.133-2.133z"/> </symbol><symbol id="wrench" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"> <path d="M64 18.267c0 1.608-0.214 3.21-0.636 4.767l0.008 0.169c0.028 0.598-0.186 1.18-0.592 1.619-2.713 7.035-9.527 11.712-17.107 11.712-1.852 0-3.671-0.275-5.427-0.819l-25.943 25.854c-1.573 1.567-3.667 2.431-5.889 2.431s-4.318-0.864-5.89-2.431l-0.087-0.087c-3.25-3.238-3.25-8.508 0-11.747l23.75-23.669c0.66-0.657 1.046-1.529 1.090-2.456l0.173-3.404c-0.070-0.657-0.105-1.308-0.105-1.939 0-10.074 8.221-18.267 18.327-18.267 3.298 0 6.532 0.883 9.353 2.555 0.602 0.357 1.005 0.979 1.083 1.675 0.011 0.098 0.017 0.161 0.020 0.237 0.044 1.158-0.297 1.536-9.858 10.586l3.847 3.921c1.149-1.058 3.185-2.929 8.997-8.27 0.542-0.497 1.293-0.697 2.010-0.534 0.719 0.163 1.311 0.668 1.583 1.351 0.856 2.147 1.291 4.418 1.292 6.745zM59.819 22.4c0.395-1.346 0.595-2.737 0.594-4.132 0-1.194-0.141-2.367-0.422-3.507-2.922 2.685-8.959 8.231-9.040 8.307-0.536 0.494-1.37 0.474-1.88-0.046l-6.953-7.087c-0.252-0.258-0.39-0.605-0.384-0.965s0.158-0.702 0.42-0.95c2.985-2.825 7.47-7.107 9.54-9.166-1.884-0.84-3.936-1.278-6.022-1.278-8.129 0-14.742 6.59-14.742 14.691 0 0.533 0.032 1.090 0.096 1.654 0.007 0.071 0.010 0.142 0.007 0.214l-0.174 3.646c-0.087 1.818-0.847 3.528-2.138 4.816l-23.75 23.668c-1.85 1.844-1.85 4.844 0 6.688l0.087 0.087c0.897 0.893 2.088 1.385 3.356 1.385s2.46-0.492 3.355-1.385l26.429-26.338c0.2-0.199 0.419-0.39 0.693-0.601 0.377-0.292 0.882-0.363 1.326-0.187 1.743 0.692 3.578 1.044 5.456 1.044 6.243 0 11.831-3.943 13.905-9.811 0.044-0.126 0.107-0.244 0.187-0.351-0.002-0.134 0.016-0.268 0.054-0.396z"/> </symbol><symbol id="template" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><path d="M1.44 0h62.56v64h-64v-64h1.44zM20.64 60.88v-39.52h-17.76v39.6h17.76zM23.44 21.36v39.6h37.44v-39.6h-37.44zM2.88 18.24h58.080v-15.36h-58.080v15.36z"/></symbol><symbol id="learn" viewBox="0 0 64 64"> <path d="M57.674 35.257c0 1.779 1.416 3.221 3.163 3.221s3.163-1.442 3.163-3.221c0-1.155-0.602-2.16-1.498-2.728v-8.973c0-0.682-0.401-1.297-1.018-1.563l-29.585-12.716c-0.413-0.178-0.881-0.178-1.295 0l-29.586 12.716c-0.617 0.265-1.018 0.881-1.018 1.563s0.401 1.297 1.018 1.562l6.662 2.863v17.587c0 4.624 7.288 9.29 23.571 9.29s23.571-4.666 23.571-9.29v-17.587l4.349-1.869v6.417c-0.896 0.569-1.497 1.573-1.497 2.728zM51.491 45.567c0 1.575-4.797 5.898-20.24 5.898s-20.24-4.323-20.24-5.898v-16.155l19.593 8.421c0.207 0.089 0.427 0.134 0.647 0.134s0.441-0.045 0.647-0.134l19.593-8.421v16.155zM31.251 34.43l-25.303-10.875 25.303-10.875 25.302 10.875-25.302 10.875z"/> </symbol><symbol id="examples-flyout" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 26 20"><g><path d="M20 19.3a.9.9 0 1 1 0-1.7 1.9 1.9 0 0 0 1.9-1.9v-3a3.6 3.6 0 0 1 1.3-2.7 3.6 3.6 0 0 1-1.3-2.8v-3A1.9 1.9 0 0 0 20 2.3a.9.9 0 1 1 0-1.7 3.6 3.6 0 0 1 3.6 3.6v3a1.9 1.9 0 0 0 2 2v1.6a1.9 1.9 0 0 0-2 2v3a3.6 3.6 0 0 1-3.6 3.5zm-14 0a3.6 3.6 0 0 1-3.6-3.6v-3a1.9 1.9 0 0 0-2-1.9V9.1a1.9 1.9 0 0 0 2-1.9v-3A3.6 3.6 0 0 1 6 .6a.9.9 0 1 1 0 1.8A1.9 1.9 0 0 0 4 4.2v3A3.6 3.6 0 0 1 2.8 10a3.6 3.6 0 0 1 1.3 2.7v3A1.9 1.9 0 0 0 6 17.6a.9.9 0 1 1 0 1.7z"/><g transform="translate(5.8 8.5)"><circle cx="12.3" cy="1.4" r="1.4"/><circle cx="7.3" cy="1.4" r="1.4"/><circle cx="2.2" cy="1.4" r="1.4"/></g></g></symbol><symbol id="components-flyout" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 28 22"><path d="M8.7 17l-2.5-2.2-4-3.5-.9-.8v1l2.5-2.2 4-3.5 1-.8c.2-.3.2-.8 0-1a.8.8 0 0 0-1.2 0L5.1 6l-4 3.6-.8.8c-.3.2-.3.8 0 1l2.5 2.2 4 3.6.8.8c.3.2.8.3 1.1 0 .3-.3.3-.8 0-1.1zM19.3 5l2.5 2.2 4 3.5.9.8v-1l-2.5 2.2-4 3.5-.9.8c-.3.3-.3.8 0 1 .3.4.8.3 1 0L23 16l4-3.6.9-.8c.3-.2.3-.8 0-1l-2.5-2.3-4-3.5-1-.8c-.2-.3-.7-.3-1 0-.3.3-.3.8 0 1zm-8 16.4l.7-2 1.6-5a3563.7 3563.7 0 0 1 2-5.8l1.7-5.1.8-2.5c.2-.4-.1-.9-.5-1a.8.8 0 0 0-1 .6c-.1.7-.4 1.3-.6 2l-1.6 4.9-2 5.9-1.7 5-.8 2.6c-.2.4.1.8.5 1a.8.8 0 0 0 1-.6z"/></symbol><symbol id="guides-documents" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 31 32"><path d="M6.7 28H1.2c-.4 0-.6-.4-.6-.8L.5.7c0-.4.3-.7.7-.7h21.1c.5 0 .7.3.7.7V2c0 .5-.2.7-.7.7-.4 0-.6-.2-.6-.7v-.6H1.8L2 26.6h4.8c.4 0 .7.2.7.6 0 .4-.3.7-.7.7z"/><path d="M8 6.8H6c-.4 0-.7-.3-.7-.7 0-.4.3-.7.7-.7h2c.5 0 .7.3.7.7 0 .4-.2.7-.7.7zM8 10.9H6c-.4 0-.7-.3-.7-.7 0-.4.3-.7.7-.7h2c.5 0 .7.3.7.7 0 .4-.2.7-.7.7zM8 15H6c-.4 0-.7-.3-.7-.7 0-.4.3-.7.7-.7h2c.5 0 .7.3.7.7 0 .4-.2.7-.7.7zM8 19H6c-.4 0-.7-.2-.7-.6 0-.4.3-.7.7-.7h2c.5 0 .7.3.7.7 0 .4-.2.7-.7.7z"/><path d="M29.8 4H8.7c-.5 0-.7.4-.7.8v26.5c0 .4.3.7.7.7h21.1c.4 0 .7-.3.7-.7V4.8c0-.4-.3-.7-.7-.7zm-.6 26.6H9.4V5.4h19.8v25.2z"/><path d="M18.1 22.8h-.6l.6-3.8h-1.9c-.2 0-.3-.1-.3-.3v-.2l3.4-5.8h.7l-.7 3.8h2c.2 0 .3.1.3.3v.2L18 22.8z"/></symbol><symbol id="start" viewBox="0 0 64 64"> <path d="M63.195 1.874c-0.143-0.52-0.549-0.926-1.069-1.069-10.765-2.978-20.385 2.978-24.355 6.948l-11.452 11.452-5.421-1.756c-3.551-1.163-7.454-0.217-10.078 2.443l-3.359 3.359c-0.582 0.594-0.582 1.544 0 2.138l7.329 7.329-4.199 6.948c-0.343 0.593-0.25 1.342 0.229 1.832l11.681 11.605c0.471 0.504 1.223 0.63 1.832 0.305l6.948-4.123h0.076l7.329 7.329c0.594 0.582 1.544 0.582 2.138 0l3.359-3.359c2.66-2.624 3.606-6.527 2.443-10.078l-1.756-5.421 11.452-11.452c3.894-4.047 9.849-13.666 6.871-24.431zM23.799 50.126l-9.925-9.925 3.13-5.268 12.063 12.063-5.268 3.13zM54.109 24.015l-12.139 12.139c-0.4 0.399-0.547 0.987-0.382 1.527l2.061 6.337c0.783 2.448 0.136 5.128-1.68 6.948l-2.29 2.29-29.012-29.012 2.29-2.29c1.819-1.815 4.5-2.463 6.948-1.68l6.337 2.061c0.54 0.165 1.128 0.018 1.527-0.382l12.216-12.063c3.436-3.359 11.452-8.398 20.461-6.337 2.061 9.085-2.978 17.102-6.337 20.461z"/> <path d="M10.667 51.195l-9.009 9.009c-0.478 0.358-0.703 0.963-0.576 1.547s0.583 1.040 1.167 1.167c0.584 0.127 1.188-0.098 1.547-0.576l9.009-9.009c0.456-0.608 0.396-1.459-0.142-1.996s-1.388-0.598-1.996-0.142z"/> <path d="M11.66 63.563c0.594 0.582 1.544 0.582 2.138 0l4.581-4.581c0.456-0.608 0.395-1.459-0.142-1.996s-1.388-0.598-1.996-0.142l-4.581 4.581c-0.582 0.594-0.582 1.544 0 2.138z"/> <path d="M1.505 52.798c0.403-0.006 0.787-0.17 1.069-0.458l4.581-4.581c0.478-0.358 0.703-0.963 0.576-1.547s-0.583-1.040-1.167-1.167c-0.584-0.127-1.188 0.098-1.547 0.576l-4.581 4.581c-0.428 0.436-0.554 1.086-0.322 1.65s0.78 0.937 1.391 0.945z"/> <path d="M43.726 13.021c-2.003 2.003-2.003 5.25 0 7.253s5.25 2.003 7.253 0c2.003-2.003 2.003-5.25 0-7.253s-5.25-2.003-7.253 0zM48.841 18.136c-0.699 0.692-1.79 0.794-2.605 0.243s-1.127-1.601-0.745-2.508c0.382-0.907 1.351-1.417 2.315-1.219s1.653 1.050 1.646 2.033c-0.004 0.545-0.223 1.067-0.611 1.451z"/> </symbol><symbol id="amp-email" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"> <defs> <linearGradient id="gradient-email" x1="76.2776137%" x2="20.8316146%" y1="-25.8400575%" y2="121.578822%"> <stop offset="0%" stop-color="#F1F068"/> <stop offset="46.2139774%" stop-color="#96D64F"/> <stop offset="100%" stop-color="#2DB932"/> </linearGradient> </defs> <path d="M64 14.080c0-3.291-2.56-5.851-5.851-5.851h-52.297c-3.291 0-5.851 2.56-5.851 5.851v35.84c0 3.291 2.56 5.851 5.851 5.851h52.297c3.291 0 5.851-2.56 5.851-5.851v-35.84zM5.851 11.154h52.297c0.183 0 0.366 0 0.549 0l-24.503 25.417c-0.549 0.549-1.28 0.914-2.194 0.914-0.731 0-1.646-0.366-2.194-0.914l-24.32-25.417c0 0 0.183 0 0.366 0zM2.926 14.080c0-0.366 0-0.731 0.183-1.097l15.36 16.091-15.543 19.2v-34.194zM58.149 52.846h-52.297c-0.731 0-1.646-0.366-2.194-0.914l16.823-20.663 7.131 7.497c1.097 1.097 2.56 1.829 4.206 1.829s3.109-0.731 4.206-1.829l6.583-6.949 17.371 20.114c-0.366 0.549-1.097 0.914-1.829 0.914v0zM61.074 48.274l-16.091-18.834 15.909-16.64c0.183 0.366 0.183 0.731 0.183 1.097v34.377z"/> </symbol><symbol id="amp-ads" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"> <defs> <linearGradient id="gradient-ads" x1="100%" x2="14.5415777%" y1="0%" y2="123.368881%"> <stop offset="0%" stop-color="#FF52E1"/> <stop offset="100%" stop-color="#5500D7"/> </linearGradient> </defs> <path d="M56.399 14.68c3.654-3.846 9.616-10.963 6.924-13.847-2.885-2.885-10.001 3.269-13.847 6.731l-0.577-0.577c-0.385-0.385-0.962-0.577-1.539-0.385l-15.963 3.077c-0.385 0-0.577 0.192-0.769 0.385l-30.195 30.195c-0.577 0.577-0.577 1.731 0 2.308l20.963 20.963c0.385 0.385 0.769 0.385 1.154 0.385s0.769-0.192 1.154-0.385l30.003-30.003c0.192-0.192 0.385-0.577 0.385-0.769v0l3.077-15.963c0.192-0.577 0-1.154-0.385-1.539l-0.385-0.577zM53.899 16.988l-2.885 14.424-28.464 28.656-18.655-18.655 28.656-28.656 14.424-2.885c-1.539 1.731-4.039 4.423-5.962 7.116-1.923-0.192-3.654 0.385-5.193 1.923-2.5 2.5-2.5 6.731 0 9.232s6.731 2.5 9.232 0c1.346-1.346 2.116-3.27 1.923-5.193-0.192-1.154-0.577-2.308-1.154-3.077-0.192-0.385-0.385-0.577-0.769-0.769-0.192-0.192-0.577-0.577-0.769-0.769 1.154-1.731 2.885-3.654 5.193-5.962l2.5 2.5 1.923 2.116zM43.321 24.873c-0.192 0.385-0.385 0.577-0.577 0.962-1.346 1.346-3.27 1.346-4.616 0s-1.346-3.27 0-4.616c0.192-0.192 0.577-0.385 0.962-0.577 1.154-0.577 2.308-0.385 3.462 0.385 0.192 0 0.192 0.192 0.385 0.192 0 0 0.192 0.192 0.192 0.385 0.577 0.962 0.769 2.116 0.192 3.27zM54.091 12.372l-2.5-2.5c4.039-3.846 7.308-5.77 8.847-6.347-0.577 1.539-2.5 4.616-6.347 8.847z"/> </symbol><symbol id="amp-stories" viewBox="0 0 36 32"> <defs> <linearGradient id="gradient-stories" x1="81.726943%" x2="23.7165981%" y1="-28.3832685%" y2="119.978062%"> <stop offset="0%" stop-color="#FFF300"/> <stop offset="100%" stop-color="#FF8F00"/> </linearGradient> </defs> <path d="M7.111 0h21.333v32h-21.333v-32zM9.481 2.37v27.259h16.593v-27.259h-16.593zM0 4.741h2.37v22.519h-2.37v-22.519zM33.185 4.741h2.37v22.519h-2.37v-22.519z"/> </symbol><symbol id="amp-websites" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"> <defs> <linearGradient id="gradient-websites" x1="81.8129399%" x2="33.8766928%" y1="0%" y2="94.4849088%"> <stop offset="0%" stop-color="#00DCC0"/> <stop offset="100%" stop-color="#005AF0"/> </linearGradient> </defs> <path d="M63.196 4.646h-62.253c-0.566 0-0.943 0.377-0.943 0.755v53.010c0 0.566 0.377 0.943 0.943 0.943h62.253c0.566 0 0.755-0.377 0.755-0.755v-53.198c0.189-0.377-0.189-0.755-0.755-0.755zM3.395 18.040h57.348v33.202h-57.348v-33.202zM60.744 7.853v6.98h-57.348v-6.98h57.348zM3.395 56.147v-1.509h57.348v1.509h-57.348zM9.055 7.853c1.132 0 1.886 0.754 1.886 1.886s-0.755 1.886-1.886 1.886-1.886-0.755-1.886-1.886 0.943-1.886 1.886-1.886zM12.828 7.853c1.132 0 1.886 0.754 1.886 1.886s-0.755 1.886-1.886 1.886-1.886-0.755-1.886-1.886 0.943-1.886 1.886-1.886zM18.487 7.853c1.132 0 1.886 0.754 1.886 1.886s-0.755 1.886-1.886 1.886-1.886-0.755-1.886-1.886 0.943-1.886 1.886-1.886zM51.123 39.734l-11.13-13.96c-0.189-0.189-0.377-0.377-0.755-0.377v0c-0.189 0-0.566 0-0.755 0.377l-8.3 9.621-4.716-6.225c-0.189-0.189-0.377-0.377-0.755-0.377s-0.566 0-0.755 0.377l-8.866 10.376c-0.377 0.377-0.189 0.943 0 1.132s0.377 0.189 0.566 0.189c0.189 0 0.566 0 0.754-0.377l8.3-9.621 4.528 5.471-2.452 3.018c-0.377 0.377-0.189 0.943 0 1.132 0.377 0.189 0.943 0.189 1.132 0l11.319-13.017 10.376 13.205c0.189 0.189 0.377 0.377 0.755 0.377 0.189 0 0.377 0 0.566-0.189 0.377-0.377 0.566-0.943 0.189-1.132zM27.165 26.718c1.509 0 2.641-1.132 2.641-2.641 0-1.321-1.132-2.641-2.641-2.641s-2.641 1.132-2.641 2.641c0 1.509 1.132 2.641 2.641 2.641zM27.165 23.322c0.566 0 0.943 0.377 0.943 0.943s-0.377 0.943-0.943 0.943-0.943-0.377-0.943-0.943c0-0.566 0.377-0.943 0.943-0.943z"/> </symbol><symbol id="angle-down-solid" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"> <path d="M56.293 16.003c1.761-1.645 4.553-1.645 6.314 0 1.857 1.734 1.857 4.623 0 6.357l-27.45 25.638c-1.761 1.645-4.553 1.645-6.314 0l-27.45-25.638c-0.899-0.839-1.393-1.963-1.393-3.178s0.494-2.339 1.393-3.178c1.761-1.645 4.553-1.645 6.314 0l24.293 22.689 24.293-22.689z"/> </symbol><symbol id="logo" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 30 30"><g fill="none" fill-rule="evenodd"><path fill="#FFF" d="M0 15c0 8.284 6.716 15 15 15 8.285 0 15-6.716 15-15 0-8.284-6.715-15-15-15C6.716 0 0 6.716 0 15z"/><path fill="#005AF0" fill-rule="nonzero" d="M13.85 24.098h-1.14l1.128-6.823-3.49.005h-.05a.57.57 0 0 1-.568-.569c0-.135.125-.363.125-.363l6.272-10.46 1.16.005-1.156 6.834 3.508-.004h.056c.314 0 .569.254.569.568 0 .128-.05.24-.121.335L13.85 24.098zM15 0C6.716 0 0 6.716 0 15c0 8.284 6.716 15 15 15 8.285 0 15-6.716 15-15 0-8.284-6.715-15-15-15z"/></g></symbol> </defs> </svg> <header class="ap--header " [class]="'ap--header ' + (mainmenuopen ? 'mainmenuopen' : '')" i-amphtml-binding> <div class="ap-o-header"> <a class="ap-o-header-home" href="/"> <svg class="ap-o-header-home-logo"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#logo"/></svg> <span class="ap-o-header-home-title">AMP</span> </a> <nav class="ap-o-header-main"> <div class="ap-o-header-main-item"> <button class="ap-o-header-main-link -tw "> About <div class="ap-a-ico ap-o-header-main-link-icon"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </div> </button> <ul class="ap-o-header-flyout"> <li class="ap-o-header-flyout-primary-item"> <a class="ap-o-header-flyout-primary-item-link websites" href="/about/websites/"> <div class="ap-o-header-flyout-primary-item-link-icon websites"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#amp-websites"/></svg> </div> <div class="ap-o-header-flyout-primary-item-link-info ap-o-header-flyout-primary-item-link-info-websites"> <div class="ap-o-header-flyout-item-title">AMP Websites</div> <div class="ap-o-header-flyout-item-description">Create flawless web experiences</div> </div> </a> </li> <li class="ap-o-header-flyout-primary-item"> <a class="ap-o-header-flyout-primary-item-link stories" href="/about/stories/"> <div class="ap-o-header-flyout-primary-item-link-icon stories"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#amp-stories"/></svg> </div> <div class="ap-o-header-flyout-primary-item-link-info ap-o-header-flyout-primary-item-link-info-stories"> <div class="ap-o-header-flyout-item-title">Web Stories</div> <div class="ap-o-header-flyout-item-description">Snackable Stories for everyone</div> </div> </a> </li> <li class="ap-o-header-flyout-primary-item"> <a class="ap-o-header-flyout-primary-item-link ads" href="/about/ads/"> <div class="ap-o-header-flyout-primary-item-link-icon ads"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#amp-ads"/></svg> </div> <div class="ap-o-header-flyout-primary-item-link-info ap-o-header-flyout-primary-item-link-info-ads"> <div class="ap-o-header-flyout-item-title">AMP Ads</div> <div class="ap-o-header-flyout-item-description">Super fast ads on the web</div> </div> </a> </li> <li class="ap-o-header-flyout-primary-item"> <a class="ap-o-header-flyout-primary-item-link email" href="/about/email/"> <div class="ap-o-header-flyout-primary-item-link-icon email"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#amp-email"/></svg> </div> <div class="ap-o-header-flyout-primary-item-link-info ap-o-header-flyout-primary-item-link-info-email"> <div class="ap-o-header-flyout-item-title">AMP Email</div> <div class="ap-o-header-flyout-item-description">Next gen email</div> </div> </a> </li> <li class="ap-o-header-flyout-item-secondary"> <a class="ap-o-header-flyout-item-title secondary" href="/about/how-amp-works/">How AMP works</a> </li> <li class="ap-o-header-flyout-item-secondary"> <a class="ap-o-header-flyout-item-title secondary" href="/about/mission-and-vision/">Vision & Mission</a> </li> <li class="ap-o-header-flyout-item-secondary"> <a class="ap-o-header-flyout-item-title secondary" href="/about/use-cases/">Use cases</a> </li> <li class="ap-o-header-flyout-item-secondary"> <a class="ap-o-header-flyout-item-title secondary" href="/success-stories/">Success Stories</a> </li> </ul> </div> <div class="ap-o-header-main-item"> <button class="ap-o-header-main-link -tw active"> Documentation <div class="ap-a-ico ap-o-header-main-link-icon"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </div> </button> <ul class="ap-o-header-flyout"> <li class="ap-o-header-flyout-item-secondary"> <a class="ap-o-header-flyout-item-title secondary" href="/documentation/">Get Started</a> </li> <li class="ap-o-header-flyout-primary-item"> <a class="ap-o-header-flyout-primary-item-link " href="/documentation/guides-and-tutorials/"> <div class="ap-o-header-flyout-primary-item-link-icon "> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#guides-documents"/></svg> </div> <div class="ap-o-header-flyout-primary-item-link-info"> <div class="ap-o-header-flyout-item-title">Guides & Tutorials</div> <div class="ap-o-header-flyout-item-description">Get started with AMP</div> </div> </a> </li> <li class="ap-o-header-flyout-primary-item"> <a class="ap-o-header-flyout-primary-item-link " href="/documentation/components/"> <div class="ap-o-header-flyout-primary-item-link-icon "> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#components-flyout"/></svg> </div> <div class="ap-o-header-flyout-primary-item-link-info"> <div class="ap-o-header-flyout-item-title">Components</div> <div class="ap-o-header-flyout-item-description">The complete AMP library</div> </div> </a> </li> <li class="ap-o-header-flyout-primary-item"> <a class="ap-o-header-flyout-primary-item-link " href="/documentation/examples/"> <div class="ap-o-header-flyout-primary-item-link-icon "> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#examples-flyout"/></svg> </div> <div class="ap-o-header-flyout-primary-item-link-info"> <div class="ap-o-header-flyout-item-title">Examples</div> <div class="ap-o-header-flyout-item-description">Hands-on introduction to AMP</div> </div> </a> </li> <li class="ap-o-header-flyout-primary-item"> <a class="ap-o-header-flyout-primary-item-link " href="/documentation/courses/"> <div class="ap-o-header-flyout-primary-item-link-icon "> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#learn"/></svg> </div> <div class="ap-o-header-flyout-primary-item-link-info"> <div class="ap-o-header-flyout-item-title">Courses</div> <div class="ap-o-header-flyout-item-description">Learn AMP with free courses</div> </div> </a> </li> <li class="ap-o-header-flyout-primary-item"> <a class="ap-o-header-flyout-primary-item-link " href="/documentation/templates/"> <div class="ap-o-header-flyout-primary-item-link-icon "> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#template"/></svg> </div> <div class="ap-o-header-flyout-primary-item-link-info"> <div class="ap-o-header-flyout-item-title">Templates</div> <div class="ap-o-header-flyout-item-description">Ready to use</div> </div> </a> </li> <li class="ap-o-header-flyout-primary-item"> <a class="ap-o-header-flyout-primary-item-link " href="/documentation/tools/"> <div class="ap-o-header-flyout-primary-item-link-icon "> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#wrench"/></svg> </div> <div class="ap-o-header-flyout-primary-item-link-info"> <div class="ap-o-header-flyout-item-title">Tools</div> <div class="ap-o-header-flyout-item-description">Begin building</div> </div> </a> </li> </ul> </div> <div class="ap-o-header-main-item"> <button class="ap-o-header-main-link -tw "> Community <div class="ap-a-ico ap-o-header-main-link-icon"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </div> </button> <ul class="ap-o-header-flyout"> <li class="ap-o-header-flyout-item-secondary"> <a class="ap-o-header-flyout-item-title secondary" href="/documentation/guides-and-tutorials/contribute/">Contribute</a> </li> <li class="ap-o-header-flyout-item-secondary"> <a class="ap-o-header-flyout-item-title secondary" href="/community/roadmap/">Roadmap</a> </li> <li class="ap-o-header-flyout-item-secondary"> <a class="ap-o-header-flyout-item-title secondary" href="/community/governance/">Governance</a> </li> <li class="ap-o-header-flyout-item-secondary"> <a class="ap-o-header-flyout-item-title secondary" href="/community/working-groups/access-subscriptions/">Working Groups</a> </li> </ul> </div> <div class="ap-o-header-main-item"> <button class="ap-o-header-main-link -tw "> Events <div class="ap-a-ico ap-o-header-main-link-icon"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </div> </button> <ul class="ap-o-header-flyout"> <li class="ap-o-header-flyout-item-secondary"> <a class="ap-o-header-flyout-item-title secondary" href="/events/amp-fest-2020/">AMP Fest 2020</a> </li> <li class="ap-o-header-flyout-item-secondary"> <a class="ap-o-header-flyout-item-title secondary" href="/events/amp-roadshow/">AMP Roadshow</a> </li> </ul> </div> <div class="ap-o-header-main-item"> <a class="ap-o-header-main-link -tw" href="https://blog.amp.dev">Blog</a> </div> <div class="ap-o-header-main-item"> <button class="ap-o-header-main-link -tw "> Support <div class="ap-a-ico ap-o-header-main-link-icon"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </div> </button> <ul class="ap-o-header-flyout"> <li class="ap-o-header-flyout-item-secondary"> <a class="ap-o-header-flyout-item-title secondary" href="/support/">Help</a> </li> <li class="ap-o-header-flyout-item-secondary"> <a class="ap-o-header-flyout-item-title secondary" href="/support/faq/">FAQ</a> </li> </ul> </div> </nav> <div class="-tv"> <span class="-tm" aria-label="Select a language" tabindex="-1"> <span class="-tw">EN</span> <div class="ap-a-ico -ty"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </div> </span> <input class="-tg" type="checkbox" name="language-selector"> <div class="-tb" role="list"> <a class="-tw" href="/de/documentation/guides-and-tutorials/contribute/" role="listitem">Deutsch</a> <a class="-tw" href="/fr/documentation/guides-and-tutorials/contribute/" role="listitem">Français</a> <a class="-tw" href="/ar/documentation/guides-and-tutorials/contribute/" role="listitem">العربية</a> <a class="-tw" href="/es/documentation/guides-and-tutorials/contribute/" role="listitem">Español</a> <a class="-tw" href="/it/documentation/guides-and-tutorials/contribute/" role="listitem">Italiano</a> <a class="-tw" href="/id/documentation/guides-and-tutorials/contribute/" role="listitem">Indonesia</a> <a class="-tw" href="/ja/documentation/guides-and-tutorials/contribute/" role="listitem">日本語</a> <a class="-tw" href="/ko/documentation/guides-and-tutorials/contribute/" role="listitem">한국어</a> <a class="-tw" href="/pt_br/documentation/guides-and-tutorials/contribute/" role="listitem">Português</a> <a class="-tw" href="/ru/documentation/guides-and-tutorials/contribute/" role="listitem">Русский</a> <a class="-tw" href="/tr/documentation/guides-and-tutorials/contribute/" role="listitem">Türkçe</a> <a class="-tw" href="/zh_cn/documentation/guides-and-tutorials/contribute/" role="listitem">中文</a> <a class="-tw" href="/pl/documentation/guides-and-tutorials/contribute/" role="listitem">Polski</a> <a class="-tw" href="/vi/documentation/guides-and-tutorials/contribute/" role="listitem">Tiếng việt</a> </div> </div> </div> </header> <label class="ap-o-burger-menu-label" on="tap:AMP.setState({mainmenuopen: !mainmenuopen, noScrollState: !noScrollState})" [class]="'ap-o-burger-menu-label ' + (mainmenuopen ? 'mainmenuopen ' : '')" for="burger-menu" tabindex="0" role="button" aria-label="Burger Menu" i-amphtml-binding> <div class="ap-a-ico ap-o-burger-menu-icon"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#menu"/></svg> </div> </label> <nav class="ap-o-burger-menu" [class]="mainmenuopen ? 'ap-o-burger-menu mainmenuopen' : 'ap-o-burger-menu'" i-amphtml-binding> <ul class="-th"> <li class="-tp"> <label class="ap-o-burger-menu-link -tw "> About </label> <input class="-td" type="checkbox" aria-label="About"> <span class="nav-icon"> <svg class="ap-a-ico"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </span> <ul class="-th"> <li class="-tp"> <a class="ap-o-burger-menu-link -tx" href="/about/websites/"> AMP Websites </a> </li> <li class="-tp"> <a class="ap-o-burger-menu-link -tx" href="/about/stories/"> Web Stories </a> </li> <li class="-tp"> <a class="ap-o-burger-menu-link -tx" href="/about/ads/"> AMP Ads </a> </li> <li class="-tp"> <a class="ap-o-burger-menu-link -tx" href="/about/email/"> AMP Email </a> </li> <li class="-tp"> <a class="ap-o-burger-menu-link -tx" href="/about/how-amp-works/"> How AMP works </a> </li> <li class="-tp"> <a class="ap-o-burger-menu-link -tx" href="/about/mission-and-vision/"> Vision & Mission </a> </li> <li class="-tp"> <a class="ap-o-burger-menu-link -tx" href="/about/use-cases/"> Use cases </a> </li> <li class="-tp"> <a class="ap-o-burger-menu-link -tx" href="/success-stories/"> Success Stories </a> </li> </ul> </li> <li class="-tp"> <label class="ap-o-burger-menu-link -tw active"> Documentation </label> <input class="-td" type="checkbox" aria-label="Documentation" checked> <span class="nav-icon"> <svg class="ap-a-ico"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </span> <ul class="-th"> <li class="-tp"> <a class="ap-o-burger-menu-link -tx" href="/documentation/"> Get Started </a> </li> <li class="-tp"> <a class="ap-o-burger-menu-link -tx" href="/documentation/guides-and-tutorials/"> Guides & Tutorials </a> </li> <li class="-tp"> <a class="ap-o-burger-menu-link -tx" href="/documentation/components/"> Components </a> </li> <li class="-tp"> <a class="ap-o-burger-menu-link -tx" href="/documentation/examples/"> Examples </a> </li> <li class="-tp"> <a class="ap-o-burger-menu-link -tx" href="/documentation/courses/"> Courses </a> </li> <li class="-tp"> <a class="ap-o-burger-menu-link -tx" href="/documentation/templates/"> Templates </a> </li> <li class="-tp"> <a class="ap-o-burger-menu-link -tx" href="/documentation/tools/"> Tools </a> </li> </ul> </li> <li class="-tp"> <label class="ap-o-burger-menu-link -tw "> Community </label> <input class="-td" type="checkbox" aria-label="Community"> <span class="nav-icon"> <svg class="ap-a-ico"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </span> <ul class="-th"> <li class="-tp"> <a class="ap-o-burger-menu-link -tx" href="/documentation/guides-and-tutorials/contribute/"> Contribute </a> </li> <li class="-tp"> <a class="ap-o-burger-menu-link -tx" href="/community/roadmap/"> Roadmap </a> </li> <li class="-tp"> <a class="ap-o-burger-menu-link -tx" href="/community/governance/"> Governance </a> </li> <li class="-tp"> <a class="ap-o-burger-menu-link -tx" href="/community/working-groups/access-subscriptions/"> Working Groups </a> </li> </ul> </li> <li class="-tp"> <label class="ap-o-burger-menu-link -tw "> Events </label> <input class="-td" type="checkbox" aria-label="Events"> <span class="nav-icon"> <svg class="ap-a-ico"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </span> <ul class="-th"> <li class="-tp"> <a class="ap-o-burger-menu-link -tx" href="/events/amp-fest-2020/"> AMP Fest 2020 </a> </li> <li class="-tp"> <a class="ap-o-burger-menu-link -tx" href="/events/amp-roadshow/"> AMP Roadshow </a> </li> </ul> </li> <li class="-tp"> <a class="ap-o-burger-menu-link -tw" href="https://blog.amp.dev">Blog</a> </li> <li class="-tp"> <a class="ap-o-burger-menu-link -tw " href="/support/"> Help </a> </li> </ul> </nav> <div class="-oc"> <amp-position-observer on="enter:slideTransition.start; exit:slideTransition.start,slideTransition.reverse" intersection-ratios="1" layout="nodisplay" class="i-amphtml-layout-nodisplay" hidden="hidden" i-amphtml-layout="nodisplay"> </amp-position-observer> <amp-animation id="slideTransition" layout="nodisplay" class="i-amphtml-layout-nodisplay" hidden="hidden" i-amphtml-layout="nodisplay"> <script type="application/json">{"duration":"150ms","fill":"both","easing":"ease-out","iterations":"1","animations":[{"selector":".label-title","keyframes":[{"transform":"scale3d(0, 1, 1)"},{"transform":"scale3d(1, 1, 1)"}]}]}</script> </amp-animation> </div> <amp-user-notification class="-fv i-amphtml-layout-nodisplay" id="format-filter-hint" layout="nodisplay" hidden="hidden" i-amphtml-layout="nodisplay"> </amp-user-notification> <div class="-fd" aria-hidden="true"> <div class="-fm"> <div class="-fg">Select your format for a more streamlined experience</div> <button class="-fy" on="tap:format-filter-hint.dismiss"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#close"/></svg> </button> </div> </div> <main class="ap--main -ao"> <div class="-tf"> <input class="-od ap-a-sidebar-mobile-toggle-input-sidebar" type="checkbox" name="sidebar" id="sidebar" autocomplete="off"> <input class="-om ap-a-sidebar-desktop-toggle-input-sidebar" type="checkbox" name="sidebar-desktop" id="sidebar-desktop" autocomplete="off"> <span id="ap--sidebar-content" class="-oy"></span> <section class="ap--toc"> <div class="ap-o-toc" [class]="contentmenuopen ? 'ap-o-toc contentmenuopen' : 'ap-o-toc'" i-amphtml-binding> <label class="ap-o-toc-toggle" for="toc" on="tap:AMP.setState({contentmenuopen: !contentmenuopen})" role="contentmenutrigger" tabindex="0"> <span class="ap-o-toc-hl">Table of contents</span> <span class="nav-icon"> <svg class="ap-a-ico"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </span> </label> <input class="-oh -of" type="checkbox" name="toc" id="toc" autocomplete="off"> <ul><li><a href="#reporting-issues-with-amp">Reporting issues with AMP</a></li> <li><a href="#providing-technical-contributions-to-amp">Providing technical contributions to AMP</a><ul> <li><a href="#helping-with-code">Helping with code</a></li> </ul> </li> <li><a href="#providing-content-contributions-to-amp">Providing content contributions to AMP</a><ul> <li><a href="#helping-with-documentation">Helping with documentation</a></li> <li><a href="#helping-with-translations">Helping with translations</a></li> </ul> </li></ul> </div> </section> <section class="-t"> <label class="-op -ol ap-a-sidebar-mobile-toggle-label-sidebar" for="sidebar" on="tap:sidebar-left.toggle" role="categoriemenutrigger" tabindex="0"> <span class="label-icon"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#sidebar-toggle"/></svg></span> <span class="label-title">Toggle Sidebar</span> </label> <label class="-op -og ap-a-sidebar-desktop-toggle-label-sidebar" for="sidebar-desktop" role="categoriemenutrigger-desktop" tabindex="0"> <span class="label-icon"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#sidebar-toggle"/></svg></span> <span class="label-title">Toggle Sidebar</span> </label> <nav class="-ou"> <a class="ap-m-breadcrumbs-crumb" href="/documentation/">Documentation</a> <span class="ap-m-breadcrumbs-divider"> <svg class="ap-a-ico -oa"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </span> <div class="ap-m-breadcrumbs-crumb">Guides & Tutorials</div> </nav> <h1>How to contribute</h1> <p>The AMP Project would not be possible without help from all members of the community whether you are a developer, content creator or provider of services relevant to AMP. There are many ways for you to contribute.</p> <h3 id="reporting-issues-with-amp">Reporting issues with AMP</h3> <p>If you have feedback or are experiencing technical issues with AMP, please file it using the <a href="https://github.com/ampproject/amphtml/issues">issue tracker</a>. If you're having issues with <a href="https://amp.dev">amp.dev</a>, please use the <a href="https://github.com/ampproject/docs/issues">docs issue tracker</a> instead.</p> <h3 id="providing-technical-contributions-to-amp">Providing technical contributions to AMP</h3> <p>The AMP Project strongly encourages technical contributions!</p> <p>We hope you'll become an ongoing participant in our open source community, but we also welcome one-off contributions for the issues you're particularly passionate about.</p> <h4 id="helping-with-code">Helping with code</h4> <p>To get started with contributing code to the AMP Project read through <a href="https://github.com/ampproject/amphtml/blob/main/docs/contributing.md">the CONTRIBUTING file</a>, which includes details of the process by which a feature or bug fix goes from concept to submission and how you can participate in technical designs and discussions. If you're new to open source we have some <a href="https://github.com/ampproject/amphtml/blob/main/docs/contributing.md#contributing-code">tips for getting started</a>.</p> <h3 id="providing-content-contributions-to-amp">Providing content contributions to AMP</h3> <p>Content on <a href="https://amp.dev">amp.dev</a> is how developers learn to build successful web experiences with AMP. We appreciate your interest in updating, creating, and requesting useful documentation! </p> <h4 id="helping-with-documentation">Helping with documentation</h4> <p>Documentation? We've got all sorts -- examples for uses of AMP, tutorials to get developers started, and guides to explore AMP's features. </p> <p><a href="https://amp.dev">amp.dev</a> is where most people get familiar with AMP. You can contribute to documentation in the <a href="https://github.com/ampproject/docs">ampproject docs GitHub project</a>. (You can even make <a href="https://github.com/ampproject/amp.dev/blob/future/pages/content/amp-dev/documentation/guides-and-tutorials/contribute/index.md">the page you are reading</a> better!</p> <p>Get started by reading our <a href="/documentation/guides-and-tutorials/contribute/contribute-documentation/?format=websites">content contribution guide</a>.</p> <h4 id="helping-with-translations">Helping with translations</h4> <p>AMP strives to make the world wide web a better experience for everyone. To enable everyone in the world to use AMP, we need translation contributors for guides, tutorials, blogs and all things written for AMP. To get involved with localizing AMP documentation for your community, check out the <a href="https://github.com/ampproject/docs/blob/master/TRANSLATIONS.md">AMP Translation Initiative</a>.</p> </section> </div> </main> <amp-sidebar id="sidebar-left" class="ap--ampsidebar i-amphtml-layout-nodisplay" layout="nodisplay" side="left" hidden="hidden" i-amphtml-layout="nodisplay"> <nav class="ap--ampsidebar-toolbar" toolbar="(min-width: 768px)" toolbar-target="ap--sidebar-content"> <ul> <div class="ap-m-format-toggle"> <button class="ap-m-format-toggle-selected ap-m-format-toggle-link-websites"> <span class="ap-a-ico"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#amp-websites"/></svg> </span> <span>websites</span> <span class="ap-a-ico ap-m-format-toggle-angle"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </span> </button> <div class="ap-m-format-toggle-formats"> <a class="ap-m-format-toggle-link ap-m-format-toggle-link-stories" href="/documentation/guides-and-tutorials/stories/contribute/"> <span class="ap-a-ico"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#amp-stories"/></svg> </span> <span>stories</span> </a> <a class="ap-m-format-toggle-link ap-m-format-toggle-link-ads" href="/documentation/guides-and-tutorials/ads/contribute/"> <span class="ap-a-ico"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#amp-ads"/></svg> </span> <span>ads</span> </a> <a class="ap-m-format-toggle-link ap-m-format-toggle-link-email" href="/documentation/guides-and-tutorials/email/contribute/"> <span class="ap-a-ico"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#amp-email"/></svg> </span> <span>email</span> </a> </div> </div> <div class="ap-o-sidebar-default"> <div class="ap-o-sidebar"> <div class="nav"> <ul class="nav-list level-1"> <li class="nav-item level-1"> <span class="nav-link"> <span>Start</span> </span> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </div> <ul class="nav-list level-2"> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/create/"> <span>Create your first AMP</span> <span class="nav-link-lastword">Page<svg class="ap-a-ico nav-type-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#tutorial"/></svg></span> </a> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico light"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-light"/></svg> </div> <ul class="nav-list level-3"> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/create/basic_markup/"> Starter code </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/create/include_image/"> Include an image </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/create/presentation_layout/"> Adding style </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/create/prepare_for_discovery/"> Plug and play components </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/create/actions_events/"> Actions and events </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/create/preview_and_validate/"> Preview and validate </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/create/publish/"> Keep going </a> </li> </ul> </li> <li class="nav-item-tutorial-divider"></li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/converting/"> <span>Convert HTML to</span> <span class="nav-link-lastword">AMP<svg class="ap-a-ico nav-type-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#tutorial"/></svg></span> </a> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico light"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-light"/></svg> </div> <ul class="nav-list level-3"> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/converting/setting-up/"> Setting up </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/converting/building-page/"> Building a regular HTML page </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/converting/resolving-errors/"> Resolving validation errors </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/converting/discoverable/"> Making your page discoverable </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/converting/congratulations/"> Congratulations! </a> </li> </ul> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/add_advanced/"> <span>Add advanced AMP</span> <span class="nav-link-lastword">features<svg class="ap-a-ico nav-type-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#tutorial"/></svg></span> </a> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico light"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-light"/></svg> </div> <ul class="nav-list level-3"> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/add_advanced/setting_up/"> Setting up </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/add_advanced/review_code/"> Reviewing the starter code </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/add_advanced/adding_components/"> Adding extended AMP components </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/add_advanced/adding_carousels/"> Adding carousels </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/add_advanced/tracking_data/"> Tracking engagement with analytics </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/add_advanced/navigating/"> Navigating your site </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/add_advanced/fonts/"> Adding fonts </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/add_advanced/congratulations/"> Congratulations! </a> </li> </ul> </li> </ul> </li> <li class="nav-item level-1"> <span class="nav-link"> <span>Learn</span> </span> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </div> <ul class="nav-list level-2"> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/amp-actions-and-events/"> Actions and events </a> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/common_attributes/"> Common element attributes </a> </li> <li class="nav-item level-2"> <span class="nav-link"> <span>AMP HTML Specification</span> </span> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico light"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-light"/></svg> </div> <ul class="nav-list level-3"> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/spec/amp-boilerplate/"> AMP Boilerplate Code </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/spec/amp-html-responsive-attributes/"> AMP HTML Responsive Attributes </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/spec/amp-video-interface/"> Video in AMP </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/spec/amphtml/"> AMP HTML Specification </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/spec/release-schedule/"> AMP Release Schedule </a> </li> </ul> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/experimental/"> Enable experimental features </a> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/amp-html-layout/"> <span>AMP's Layout System</span> </a> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico light"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-light"/></svg> </div> <ul class="nav-list level-3"> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/amp-html-layout/"> AMPHTML Layout System </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/amp-html-layout/layouts_demonstrated/"> Demonstrating AMP layouts </a> </li> </ul> </li> <li class="nav-item level-2"> <span class="nav-link"> <span>Validation Workflow</span> </span> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico light"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-light"/></svg> </div> <ul class="nav-list level-3"> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/validation-workflow/validate_amp/"> Validate AMP pages </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/validation-workflow/validation_errors/"> AMP validation errors </a> </li> </ul> </li> <li class="nav-item level-2"> <span class="nav-link"> <span>AMP Caches & CORS</span> </span> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico light"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-light"/></svg> </div> <ul class="nav-list level-3"> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/amp-caches-and-cors/amp-cache-debugging/"> Debug AMP Cache issues </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/amp-caches-and-cors/amp-cors-requests/"> CORS in AMP </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/amp-caches-and-cors/how_amp_pages_are_cached/"> How AMP pages are cached </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/amp-caches-and-cors/amp-cache-urls/"> AMP Cache URL Format and Request Handling </a> </li> </ul> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/combine-amp-pwa/"> How AMP and PWA relate to each other </a> </li> </ul> </li> <li class="nav-item level-1"> <span class="nav-link"> <span>Develop</span> </span> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </div> <ul class="nav-list level-2"> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/style_and_layout/"> <span>Style & Layout</span> </a> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico light"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-light"/></svg> </div> <ul class="nav-list level-3"> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/style_and_layout/style_pages/"> Supported CSS </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/style_and_layout/control_layout/"> Layout & media queries </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/style_and_layout/placeholders/"> Placeholders & fallbacks </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/style_and_layout/art_direction/"> Responsive images with srcset, sizes & heights </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/style_and_layout/responsive_design/"> Create responsive AMP pages </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/style_and_layout/custom_fonts/"> Add custom fonts </a> </li> </ul> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/media_iframes_3p/"> <span>Include media, iframes & third-party content</span> </a> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico light"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-light"/></svg> </div> <ul class="nav-list level-3"> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/media_iframes_3p/"> Include images & video </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/media_iframes_3p/third_party_components/"> Include third-party content </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/media_iframes_3p/iframes/"> Include iframes </a> </li> </ul> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/interactivity_guide/"> <span>Interactivity</span> </a> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico light"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-light"/></svg> </div> <ul class="nav-list level-3"> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/interactivity_guide/foundations/"> Interactivity foundations </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/interactivity_guide/ready_made/"> Ready-made interactivity with AMP components </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/interactivity_guide/personalized_experiences/"> Building personalized interactive experiences </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/interactivity_guide/client_rendering/"> Client-side rendering in AMP </a> </li> </ul> </li> <li class="nav-item level-2"> <span class="nav-link"> <span>Animate & Transition</span> </span> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico light"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-light"/></svg> </div> <ul class="nav-list level-3"> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/animations/triggering_css_animations/"> Triggering CSS animations & transitions </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/animations/introduction_to_animations/"> Introduction to complex animations </a> </li> </ul> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/custom-javascript/"> Use custom JavaScript in AMP pages </a> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/monetization/"> <span>Monetize your AMP pages</span> </a> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico light"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-light"/></svg> </div> <ul class="nav-list level-3"> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/monetization/"> Monetizing your AMP page with ads </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/monetization/ads_vendors/"> Ads vendors </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/monetization/content_encryption/"> Protect your subscription content with client-side encryption </a> </li> </ul> </li> <li class="nav-item-tutorial-divider"></li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/interactivity/"> <span>Create interactive AMP</span> <span class="nav-link-lastword">pages<svg class="ap-a-ico nav-type-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#tutorial"/></svg></span> </a> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico light"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-light"/></svg> </div> <ul class="nav-list level-3"> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/interactivity/prereqs-setup/"> Setting up </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/interactivity/get-familiar/"> Getting familiar with the starter code </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/interactivity/advanced-interactivity/"> Improving the interactivity </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/interactivity/remote-data/"> Working with remote data </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/interactivity/wrapping-up/"> Wrapping up </a> </li> </ul> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/login_requiring/"> <span>Create a login-requiring AMP</span> <span class="nav-link-lastword">page<svg class="ap-a-ico nav-type-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#tutorial"/></svg></span> </a> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico light"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-light"/></svg> </div> <ul class="nav-list level-3"> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/login_requiring/login/"> Login </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/login_requiring/add_comment/"> Add a comment </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/login_requiring/logout/"> Logout </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/login_requiring/summary/"> Summary </a> </li> </ul> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/custom-javascript-tutorial/"> Create a UI widget with custom JavaScript <svg class="ap-a-ico nav-type-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#tutorial"/></svg> </a> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/live_blog/"> Create a live blog <svg class="ap-a-ico nav-type-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#tutorial"/></svg> </a> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/develop/seatmap/"> Create a seatmap <svg class="ap-a-ico nav-type-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#tutorial"/></svg> </a> </li> </ul> </li> <li class="nav-item level-1"> <span class="nav-link"> <span>Integrate</span> </span> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </div> <ul class="nav-list level-2"> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/integrate/web-story-player-guide/"> Creating Web Story experiences using the Web Story Player on non-AMP sites </a> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/integrate/amp-in-pwa/"> Use AMP as a data source for your PWA </a> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/integrate/amp-to-pwa/"> Preload your PWA from your AMP pages </a> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/integrate/integrate-with-apps/"> Integrate AMP with your app </a> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/integrate/embed-stories/"> Integrate stories in AMP pages </a> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/integrate/embed-stories-nonamp/"> Integrate Web Stories in non-AMP pages </a> </li> </ul> </li> <li class="nav-item level-1"> <span class="nav-link"> <span>Optimize & Measure</span> </span> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </div> <ul class="nav-list level-2"> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/optimize-and-measure/amp-managing-user-state/"> Manage non-authenticated user state with AMP </a> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/optimize-and-measure/publishing_checklist/"> AMP publishing checklist </a> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/optimize-and-measure/amp-optimizer-guide/"> <span>Using an AMP Optimizer</span> </a> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico light"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-light"/></svg> </div> <ul class="nav-list level-3"> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/optimize-and-measure/amp-optimizer-guide/explainer/"> How an AMP Optimizer works </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/optimize-and-measure/amp-optimizer-guide/node-amp-optimizer/"> Node.js AMP Optimizer Guide </a> </li> </ul> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/optimize-and-measure/configure-analytics/"> <span>Track engagement with analytics</span> </a> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico light"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-light"/></svg> </div> <ul class="nav-list level-3"> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/optimize-and-measure/configure-analytics/analytics-vendors/"> Analytics Vendors </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/optimize-and-measure/configure-analytics/analytics_basics/"> Analytics: the basics </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/optimize-and-measure/configure-analytics/deep_dive_analytics/"> Deep dive into AMP analytics </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/optimize-and-measure/configure-analytics/use_cases/"> Use cases </a> </li> </ul> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/optimize-and-measure/signed-exchange/"> Serve AMP using signed exchanges </a> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/optimize-and-measure/discovery/"> Make your pages discoverable </a> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/optimize-and-measure/engagement/"> Improve user engagement </a> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/optimize-and-measure/optimize_amp/"> Optimize your hosted AMP pages </a> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/optimize-and-measure/secure-pages/"> Secure from third party attacks </a> </li> <li class="nav-item-tutorial-divider"></li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/optimize-and-measure/amp_to_pwa/"> Turn your AMP site into a PWA <svg class="ap-a-ico nav-type-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#tutorial"/></svg> </a> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/optimize-and-measure/amp-as-pwa/"> Easy offline access and improved performance </a> </li> <li class="nav-item-tutorial-divider"></li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/optimize-and-measure/tracking-engagement/"> How to configure basic analytics for your AMP pages <svg class="ap-a-ico nav-type-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#tutorial"/></svg> </a> </li> </ul> </li> <li class="nav-item active level-1"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/contribute/"> <span>Contribute</span> </a> <input class="nav-trigger" type="checkbox" checked> <div class="nav-icon"> <svg class="ap-a-ico"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </div> <ul class="nav-list level-2"> <li class="nav-item active level-2" autoscroll> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/contribute/"> How to contribute </a> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/contribute/integrate-your-analytics-tools/"> Integrate your analytics tool with AMP </a> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/contribute/contribute-documentation/"> <span>Contribute documentation</span> </a> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico light"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-light"/></svg> </div> <ul class="nav-list level-3"> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/contribute/contribute-documentation/documentation-types/websites/"> Documentation types </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/contribute/contribute-documentation/terminology/websites/"> AMP terminology </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/contribute/contribute-documentation/formatting/websites/"> Formatting guides & tutorials </a> </li> </ul> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/contribute/vendor-contributions/"> <span>Third party contributions</span> </a> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico light"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-light"/></svg> </div> <ul class="nav-list level-3"> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/contribute/vendor-contributions/release-schedule/"> Release Schedule </a> </li> </ul> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/contribute/translations/"> Contribute translations </a> </li> </ul> </li> </ul> </div> </div> </div> </ul> </nav> </amp-sidebar> <footer class="ap--footer"> <div class="-a"> <div class="-f"> <div class="ap-o-footer-hint">Of course, this site is made with AMP!</div> <div class="-l"> <h5 class="-c">Follow us</h5> <ul class="-h"> <li class="-p"> <a class="ap-a-ico -d" href="https://twitter.com/AMPhtml" rel="noopener" title="Twitter"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#twitter"/></svg> </a> </li> <li class="-p"> <a class="ap-a-ico -d" href="https://www.youtube.com/channel/UCXPBsjgKKG2HqsKBhWA4uQw" rel="noopener" title="YouTube"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#youtube"/></svg> </a> </li> <li class="-p"> <a class="ap-a-ico -d" href="https://blog.amp.dev/" rel="noopener"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#wordpress" title="WordPress"/></svg> </a> </li> <li class="-p"> <a class="ap-a-ico -d" href="https://github.com/ampproject" title="GitHub"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#github"/></svg> </a></li> <li class="-p"> <a class="ap-a-ico -d" href="https://stackoverflow.com/questions/tagged/amp-html" rel="noopener" title="Stackoverflow"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#stackoverflow"/></svg></a> </li> </ul> </div> </div> <div class="-v"> <div class="-m"> <h5 class="-g">Overview</h5> <ul class="-y"> <li class="-b"><a href="/about/websites/" class="-w"><div class="ap-a-ico -x"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#internal"/></svg></div>AMP Framework</a></li> <li class="-b"><a href="/about/use-cases/" class="-w"><div class="ap-a-ico -x"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#internal"/></svg></div>Use Cases</a></li> <li class="-b"><a href="/success-stories/" class="-w"><div class="ap-a-ico -x"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#internal"/></svg></div>Success stories</a></li> <li class="-b"><a href="/about/how-amp-works/" class="-w"><div class="ap-a-ico -x"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#internal"/></svg></div>Functionality</a></li> </ul> </div> <div class="-m"> <h5 class="-g">Docs</h5> <ul class="-y"> <li class="-b"><a href="/documentation/guides-and-tutorials/" class="-w"><div class="ap-a-ico -x"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#internal"/></svg></div>Get Started</a></li> <li class="-b"><a href="/documentation/guides-and-tutorials/" class="-w"><div class="ap-a-ico -x"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#internal"/></svg></div>Guides and Tutorials</a></li> <li class="-b"><a href="/documentation/components/" class="-w"><div class="ap-a-ico -x"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#internal"/></svg></div>Components</a></li> <li class="-b"><a href="/documentation/examples/" class="-w"><div class="ap-a-ico -x"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#internal"/></svg></div>Examples</a></li> <li class="-b"><a href="/documentation/templates/" class="-w"><div class="ap-a-ico -x"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#internal"/></svg></div>Design Templates</a></li> <li class="-b"><a href="/documentation/tools/" class="-w"><div class="ap-a-ico -x"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#internal"/></svg></div>Tools</a></li> </ul> </div> <div class="-m"> <h5 class="-g">Community</h5> <ul class="-y"> <li class="-b"><a href="/support/faq/platform-and-vendor-partners/" class="-w"><div class="ap-a-ico -x"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#internal"/></svg></div>Platform and Vendor Partners</a></li> <li class="-b"><a href="/documentation/guides-and-tutorials/contribute/" class="-w"><div class="ap-a-ico -x"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#internal"/></svg></div>Contribute</a></li> <li class="-b"><a href="/community/roadmap/" class="-w"><div class="ap-a-ico -x"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#internal"/></svg></div>Roadmap</a></li> </ul> <h5 class="-g">OpenJS Foundation</h5> <ul class="-y"> <li class="-b"><a class="-w" href="https://openjsf.org" rel="noopener"><div class="ap-a-ico -x"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#internal"/></svg></div>The OpenJS Foundation</a></li> <li class="-b"><a class="-w" href="https://bylaws.openjsf.org" rel="noopener"><div class="ap-a-ico -x"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#internal"/></svg></div>OpenJS Foundation Bylaws</a></li> <li class="-b"><a class="-w" href="https://trademark-policy.openjsf.org" rel="noopener"><div class="ap-a-ico -x"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#internal"/></svg></div>Trademark Policy</a></li> <li class="-b"><a class="-w" href="https://trademark-list.openjsf.org" rel="noopener"><div class="ap-a-ico -x"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#internal"/></svg></div>Trademark List</a></li> </ul> </div> <div class="-m"> <h5 class="-g">Events</h5> <ul class="-y"> <li class="-b"><a href="https://blog.amp.dev/2020/02/20/amp-conf-2020-return-to-nyc/" class="-w"><div class="ap-a-ico -x"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#internal"/></svg></div>AMP Conf 2020</a></li> <li class="-b"><a href="/events/amp-cs-2019/" class="-w"><div class="ap-a-ico -x"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#internal"/></svg></div>AMP Contributor Summit 2019</a></li> </ul> <h5 class="-g">AMP Brand Materials</h5> <ul class="-y"> <li class="-b"><a href="/static/files/brand-material/AMP_Mini_Styleguide.pdf" class="-w"><div class="ap-a-ico -x"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#download"/></svg></div>Styleguide</a></li> <li class="-b"><a href="/static/files/brand-material/AMP_Logo_Rebrush.zip" class="-w"><div class="ap-a-ico -x"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#download"/></svg></div>Logos</a></li> </ul> </div> </div> <div class="-k"> <div class="-_"> <amp-img src="/static/img/logo-openjsf.svg" alt="Logo of the OpenJS Foundation" width="315" height="100" layout="responsive" class="i-amphtml-layout-responsive i-amphtml-layout-size-defined" i-amphtml-layout="responsive"><i-amphtml-sizer slot="i-amphtml-svc" style="display:block;padding-top:31.746%"></i-amphtml-sizer></amp-img> </div> <ul class="-j"> <li class="-q"><a class="-z" href="https://terms-of-use.openjsf.org" rel="noopener">Terms of Use</a></li> <li class="-q"><a class="-z" href="https://privacy-policy.openjsf.org" rel="noopener">Privacy Policy</a></li> <li class="-q"><a class="-z" href="https://www.linuxfoundation.org/cookies" rel="noopener">Cookie Policy</a></li> </ul> </div> <div class="-te"> © <a href="https://openjsf.org">OpenJS Foundation</a> and AMP Project contributors. All rights reserved. The <a href="https://openjsf.org">OpenJS Foundation</a> has registered trademarks and uses trademarks. For a list of trademarks of the <a href="https://openjsf.org">OpenJS Foundation</a>, please see our <a href="https://trademark-policy.openjsf.org">Trademark Policy</a> and <a href="https://trademark-list.openjsf.org">Trademark List</a>. Trademarks and logos not indicated on the <a href="https://trademark-list.openjsf.org">list of OpenJS Foundation trademarks</a> are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. <br><br> The services available at <a href="https://cdn.ampproject.org">cdn.ampproject.org</a> are provided by Google and the respective <a href="https://policies.google.com/privacy?hl=en">privacy policy</a> applies. </div> </div> </footer> <amp-analytics type="gtag" data-credentials="include" data-block-on-consent class="i-amphtml-layout-fixed i-amphtml-layout-size-defined" style="width:1px;height:1px;" i-amphtml-layout="fixed"> <script type="application/json">{"extraUrlParams":{"cd2":"${ampdocHost}"},"requests":{"CWV_EVENT":"${base}?v=1\u0026t=event\u0026tid=${gtag_id}\u0026cid=0\u0026ec=cwv","base":"https://google-analytics.com/collect/"},"triggers":{"banner":{"on":"click","selector":"#top-banner","vars":{"event_action":"click","event_category":"guides-and-tutorials","event_label":"banner","event_name":"banner"}},"breadcrumbLink":{"on":"click","selector":".ap-m-breadcrumbs-crumb","vars":{"event_action":"link","event_category":"guides-and-tutorials","event_label":"breadcrumbs","event_name":"breadcrumbs"}},"cls":{"extraUrlParams":{"cls":"${cumulativeLayoutShift}"},"on":"visible","request":"CWV_EVENT"},"defaultPageview":{"on":"visible","request":"pageview","vars":{"title":"{{title}}"}},"fid":{"extraUrlParams":{"fid":"${firstInputDelay}"},"on":"visible","request":"CWV_EVENT"},"formatToggle":{"on":"click","selector":".ap-m-format-toggle-link","vars":{"event_action":"link","event_category":"guides-and-tutorials","event_label":"format-toggle","event_name":"format-toggle"}},"lcp":{"extraUrlParams":{"lcp":"${largestContentfulPaint}"},"on":"visible","request":"CWV_EVENT"},"navigation":{"on":"click","selector":".ap--header a, .ap-o-burger-menu-link","vars":{"event_action":"link","event_category":"guides-and-tutorials","event_label":"navigation","event_name":"navigation"}},"scrolledEnd":{"on":"scroll","scrollSpec":{"verticalBoundaries":[90]},"vars":{"event_action":"end","event_category":"guides-and-tutorials","event_label":"scroll","event_name":"scroll"}},"scrolledHalf":{"on":"scroll","scrollSpec":{"verticalBoundaries":[50]},"vars":{"event_action":"half","event_category":"guides-and-tutorials","event_label":"scroll","event_name":"scroll"}},"searchButton":{"on":"click","selector":"#searchTriggerOpen","vars":{"event_action":"open","event_category":"search","event_label":"search","event_name":"search"}},"sidebarLink":{"on":"click","selector":".ap-o-sidebar a","vars":{"event_action":"link","event_category":"guides-and-tutorials","event_label":"sidebar","event_name":"sidebar"}},"sidebarToggle":{"on":"click","selector":"label[for=\"sidebar-desktop\"], label[for=\"sidebar\"]","vars":{"event_action":"toggle","event_category":"guides-and-tutorials","event_label":"sidebar","event_name":"sidebar"}},"tocLink":{"on":"click","selector":".ap-o-toc a","vars":{"event_action":"link","event_category":"guides-and-tutorials","event_label":"toc","event_name":"toc"}},"tocToggle":{"on":"click","selector":".ap-o-toc label","vars":{"event_action":"toggle","event_category":"guides-and-tutorials","event_label":"toc","event_name":"toc"}}},"vars":{"config":{"G-TYM9BH1XCX":{"groups":"default"}},"gtag_id":"G-TYM9BH1XCX"}}</script> </amp-analytics><amp-geo layout="nodisplay" class="i-amphtml-layout-nodisplay" hidden="hidden" i-amphtml-layout="nodisplay"> <script type="application/json">{"ISOCountryGroups":{"eu":["preset-eea"],"doubleOptIn":["de","at","no","gr","lu"]}}</script> </amp-geo> <amp-consent id="consent" class="-o i-amphtml-layout-nodisplay" layout="nodisplay" hidden="hidden" i-amphtml-layout="nodisplay"> <script type="application/json">{"consentInstanceId":"consent","promptUI":"consent-popup","consentRequired":false,"geoOverride":{"eu":{"consentRequired":true}}}</script> <div id="consent-popup" class="consent-popup"> <button type="reset" class="-u" on="tap:consent.dismiss" role="button" tabindex="0" aria-label="Dismiss consent"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#close"/></svg> </button> <p class="ap-o-consent-text"> We use cookies to understand how you use our site and to improve your experience. By continuing to use our site, you accept our <a href="https://policies.google.com/technologies/cookies">use of cookies</a> and <a href="https://policies.google.com/privacy">privacy policy</a>. </p> <button on="tap:consent.accept" class="ap-a-btn" role="button" aria-label="Accept use of cookies">Got it!</button> </div> </amp-consent> <amp-install-serviceworker src="/serviceworker.js" data-iframe-src="https://amp.dev/serviceworker.html" layout="nodisplay" class="i-amphtml-layout-nodisplay" hidden="hidden" i-amphtml-layout="nodisplay"></amp-install-serviceworker> <style amp-keyframes>@keyframes duepduep{0%{transform:translate(0)}49%{transform:translate(40px)}50%{transform:translate(-40px)}to{transform:translate(0)}}@keyframes moveSidebarToggleBackwards{0%{transform:translateX(calc(90vw - 50%))}to{transform:translateX(0)}}@keyframes moveSidebarToggleForwards{0%{transform:translateX(0)}to{transform:translateX(calc(90vw - 50%))}}</style></body></html>