A free guide to HTML5 elements, Hacker News

charset="utf-8">name="viewport"(content="width=device-width, initial-scale=1">  to consistently ensure proper document rendering.   Any other head element should come * after * these tags.  ->

charset="UTF-8">href="https://example.com/page.html">rel="stylesheet"(href=)"styles.css">  / * ... * /  

  to consistently ensure proper document rendering.   Any other head element should come * after * these tags. ->charset="UTF-8">name="viewport"(content="width=device-width, initial-scale=1">as possible, as the tag   only applies to resources that are declared after it. ->http-equiv="Content-Security-Policy"(content=)"default-src 'self'">name="application-name"(content=)"Application Name">name="theme-color"(content=)"# 4285 F4 ">name="description"(content="A description of the page">name="robots"(content="index, follow">name="googlebot"(content="index, follow">name="google"(content="nositelinkssearchbox">name="google"(content="notranslate">name="google-site-verification"content="verification_token">name="yandex-verification"(content=)"verification_token">name="msvalidate. 01 "content="verification_token">name="alexaVerifyID"(content="verification_token">name="p: domain_verify"(content=)"code_from_pinterest">name="norton-safeweb-site-verification"(content=)"norton_code">name="generator"(content="program">name="subject"(content="your document's subject">name="rating"content="General">name="referrer"(content="no-referrer">name="format-detection"(content=)"telephone=no">http-equiv="x-dns-prefetch-control"content="off">http-equiv="Window-Target"content="_ value">name="ICBM"(content="latitude, longitude">name="geo.position"(content=)"latitude; longitude">name="geo.region"(content=)"country [-state]">name="geo.placename"(content=)"city / town">

rel="stylesheet"(href=)"https://example.com/styles.css">rel="canonical"(href=)"https://example.com/article/?page=2">rel="amphtml"(href=)"https://example.com/path/to/amp-version.html">rel="manifest"(href=)"manifest.json">rel="author"(href=)"humans.txt">rel="license"(href=)"copyright.html">rel="alternate"(href=)"https://es.example.com/"hreflang="es">rel="me"(href=)"https://google.com/profiles/thenextweb"type="text / html">rel="me"(href=)"mailto: [email protected]">rel="me"(href=)"SMS:   15035550125 ">rel="archives"(href=)"https://example.com/archives/">rel="index"(href=)"https://example.com/article/">rel="Self"(type="application / atom   xml"href="https://example.com/atom. xml ">rel="first"(href=)"https://example.com/article/">rel="last"(href=)"https://example.com/article/?page=42 ">rel="prev"(href=)"https://example.com/article/?page=1">rel="next"(href=)"https://example.com/article/?page=3">rel="EditURI"(href=)"https://example.com/xmlrpc.php?rsd"type="application / RSD   XML "title="RSD">rel="Pingback"(href=)"https://example.com/xmlrpc.php">rel="webmention"(href=)"https://example.com/webmention">rel="micropub"(href=)"https://example.com/micropub">rel="search"href="/ open-search.xml"type="application / opensearchdescription   xml"title="Search Title">rel="alternate"(href=)"https://feeds.feedburner.com/example"type="application / rss   xml "title="RSS">rel="alternate"(href=)"https://example.com/feed.atom"type="application / atom   xml "title="Atom 0.3">rel="dns-prefetch"(href=)"// example.com/">rel="preconnect"(href=)"https://www.example.com/">rel="prefetch"(href=)"https://www.example.com/">rel="Prerender"(href=)"https://example.com/">rel="Preload"(href=)"image.png"as="image">

rel="icon"sizes=" (x)  "href="/ path / to / icon.png">rel="apple-touch-icon"href="/ path / to / apple-touch-icon.png">rel="mask-icon"(href=)"/ path / to / icon.svg"color="blue">

property="fb: app_id"content="123456789 ">property="og: url"(content=)"https://example.com/page.html">property="og: type"(content=)"Website">property="og: title"(content=)"Content Title">property="og: image"(content=)"https://example.com/image.jpg">property="og: image: alt"content="A description of what is in the image (not a caption)">property="og: description"(content=)"Description Here">property="og: site_name"(content=)"Site Name">property="og: locale"(content=)"en_US">property="article: author"(content=)"">

name="twitter: card"content="Summary">name="twitter: site"(content=)"@ site_account">name="twitter: creator"(content=)"@ individual_account">name="twitter: url"(content=)"https://example.com/page.html">name="twitter: title"(content=)"Content Title">name="twitter: description"(content=)"Content description less than 200 characters ">name="twitter: image"(content=)"https://example.com/image.jpg">name="twitter: image: alt"content="A text description of the image conveying the essential nature of an image to users who are visually impaired. Maximum 420 characters. ">

name="twitter: dnt"(content=)"on">

lang=""itemscopeitemtype="https: // schema .org / Article ">          rel="author"(href=)"">      rel="publisher"(href=)"">      itemprop="name"(content="Content Title">      itemprop="description"(content="Content description less than 200 characters ">      itemprop="image"(content="https://example.com/image.jpg">

name="Pinterest"content="nopin"(description=)"Sorry, you can't save from my website!">

charset="utf-8">property="op: markup_version"(content=)"v1.0">rel="canonical"(href=)"https://example.com/article.html">property="fb: article_style"(content=)"myarticlestyle">

rel="alternate"type="application / json   oembed"  href="https://example.com/services/oembed?url=http://example.com/foo/&format=json "  title="oEmbed Profile: JSON">rel="alternate"(type="text / xml   oembed"  href="https://example.com/services/oembed?url=http://example.com/foo/&format=xml "  title="oEmbed Profile: XML">

name="apple-itunes-app"content="app-id=APP_ID, affiliate-data=AFFILIATE_ID, app-argument=SOME_TEXT">name="format-detection"(content=)"telephone=no">rel="apple-touch-icon"href="/ path / to / apple-touch-icon.png">rel="apple-touch-startup-image"(href=)"/ path / to / launch.png">name="apple-mobile-web-app-title"content="App Title">name="apple-mobile-web-app-capable"content="yes">name="apple-mobile-web-app-status-bar-style"content="black">name="apple-itunes-app"content="app-id=APP-ID, app-argument=http / url-sample.com">rel="alternate"(href=)"ios-app://APP-ID/http/url-sample.com">

name="theme-color"content="# E 64545 "">name="mobile-web-app-capable"(content=)"yes">name="google-play-app"content="app-id=package-name">rel="alternate"(href=)"android-app://package-name/http/url-sample.com">

rel="chrome-webstore-item"href="https://chrome.google.com/webstore/ detail / APP_ID ">name="google"(content="notranslate">

http-equiv="x-ua-compatible"(content=)"ie=edge">name="skype_toolbar"(content="skype_toolbar_parser_compatible">name="msapplication-config"(content=)"/ browserconfig.xml">

                src="small.png"/>        src="medium.png"/>        src="wide.png"/>        src="large.png"/>        

property="al: ios: url"content="applinks: // docs">property="al: ios: app_store_id"content="12345 "">property="al: ios: app_name"content="App Links">property="al: android: url"content="applinks: // docs">property="al: android: app_name"content="App Links">property="al: android: package"content="org.applinks">property="al: web: url"content="https://applinks.org/documentation">