{"id":2498,"date":"2016-06-19T04:56:45","date_gmt":"2016-06-19T04:56:45","guid":{"rendered":"https:\/\/kiencang.net\/?p=2498"},"modified":"2016-06-19T04:56:45","modified_gmt":"2016-06-19T04:56:45","slug":"the-head-trong-html","status":"publish","type":"post","link":"https:\/\/kiencang.net\/the-head-trong-html\/","title":{"rendered":"Th\u1ebb head trong HTML"},"content":{"rendered":"\n<p>V\u00ed d\u1ee5 v\u1ec1 t\u00e0i li\u1ec7u HTML, v\u1edbi <a href=\"https:\/\/kiencang.net\/the-title-trong-html\/\" target=\"_blank\" rel=\"noreferrer noopener\">th\u1ebb title<\/a> b\u00ean trong khu v\u1ef1c c\u1ee7a th\u1ebb head:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;!DOCTYPE html>\n&lt;html>\n\n&lt;head>\n  &lt;title>Ti\u00eau \u0111\u1ec1 c\u1ee7a t\u00e0i li\u1ec7u&lt;\/title>\n&lt;\/head>\n\n&lt;body>\n  N\u1ed9i dung c\u1ee7a t\u00e0i li\u1ec7u\u2026\n&lt;\/body>\n\n&lt;\/html><\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_60 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >M\u1ee5c l\u1ee5c<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\" role=\"button\"><label for=\"item-6577d69e2fdec\" ><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input aria-label=\"Toggle\" aria-label=\"item-6577d69e2fdec\"  type=\"checkbox\" id=\"item-6577d69e2fdec\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/kiencang.net\/the-head-trong-html\/#Dinh_nghia_va_cach_dung\" title=\"\u0110\u1ecbnh ngh\u0129a v\u00e0 c\u00e1ch d\u00f9ng\">\u0110\u1ecbnh ngh\u0129a v\u00e0 c\u00e1ch d\u00f9ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/kiencang.net\/the-head-trong-html\/#Trinh_duyet_ho_tro\" title=\"Tr\u00ecnh duy\u1ec7t h\u1ed7 tr\u1ee3\">Tr\u00ecnh duy\u1ec7t h\u1ed7 tr\u1ee3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/kiencang.net\/the-head-trong-html\/#Su_khac_nhau_giua_HTML_401_va_HTML5\" title=\"S\u1ef1 kh\u00e1c nhau gi\u1eefa HTML 4.01 v\u00e0 HTML5\">S\u1ef1 kh\u00e1c nhau gi\u1eefa HTML 4.01 v\u00e0 HTML5<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/kiencang.net\/the-head-trong-html\/#Thuoc_tinh\" title=\"Thu\u1ed9c t\u00ednh\">Thu\u1ed9c t\u00ednh<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Dinh_nghia_va_cach_dung\"><\/span>\u0110\u1ecbnh ngh\u0129a v\u00e0 c\u00e1ch d\u00f9ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><code>Th\u1ebb &lt;head><\/code> \u0111\u01b0\u1ee3c d\u00f9ng v\u00e0o m\u1ee5c \u0111\u00edch ch\u1ee9a t\u1ea5t c\u1ea3 c\u00e1c &#8220;th\u00f4ng tin \u0111\u1ea7u&#8221;.<\/p>\n\n\n\n<p>Th\u1ebb &lt;head&gt; c\u00f3 th\u1ec3 ch\u1ee9a ti\u00eau \u0111\u1ec1 c\u1ee7a t\u00e0i li\u1ec7u, m\u00e3 script, style CSS, c\u00e1c th\u00f4ng tin meta v\u00e0 nhi\u1ec1u th\u1ee9 kh\u00e1c.<\/p>\n\n\n\n<p>Nh\u1eefng th\u1ebb sau c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o b\u00ean trong th\u1ebb &lt;head&gt;:<\/p>\n\n\n\n<ul><li><a href=\"https:\/\/kiencang.net\/the-title-trong-html\/\" target=\"_blank\" rel=\"noreferrer noopener\">&lt;title><\/a> (th\u1ebb n\u00e0y l\u00e0 b\u1eaft bu\u1ed9c trong t\u00e0i li\u1ec7u HTML);<\/li><li><a href=\"https:\/\/kiencang.net\/the-style-trong-html-ke-thue-trang-diem-tai-gia\/\" target=\"_blank\" rel=\"noreferrer noopener\">&lt;style><\/a> (d\u00f9ng \u0111\u1ec3 bao c\u00e1c \u0111o\u1ea1n m\u00e3 CSS);<\/li><li><a href=\"https:\/\/kiencang.net\/the-base-trong-html\/\" target=\"_blank\" rel=\"noreferrer noopener\">&lt;base><\/a>;<\/li><li><a href=\"https:\/\/kiencang.net\/link-trong-html\/\" target=\"_blank\" rel=\"noreferrer noopener\">&lt;link><\/a> (d\u00f9ng \u0111\u1ec3 li\u00ean k\u1ebft \u0111\u1ebfn m\u1ed9t file CSS b\u00ean ngo\u00e0i);<\/li><li><a href=\"https:\/\/kiencang.net\/meta-trong-html\/\" target=\"_blank\" rel=\"noreferrer noopener\">&lt;meta><\/a>;<\/li><li><a href=\"https:\/\/kiencang.net\/the-script-trong-html\/\" target=\"_blank\" rel=\"noreferrer noopener\">&lt;script><\/a> (d\u00f9ng \u0111\u1ec3 bao c\u00e1c \u0111o\u1ea1n m\u00e3 JavaScript);<\/li><li><a href=\"https:\/\/kiencang.net\/the-noscript-trong-html\/\" target=\"_blank\" rel=\"noreferrer noopener\">&lt;noscript><\/a> (n\u1ed9i dung thay th\u1ebf trong tr\u01b0\u1eddng h\u1ee3p tr\u00ecnh duy\u1ec7t v\u00f4 hi\u1ec7u h\u00f3a JavaScript);<\/li><\/ul>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Trinh_duyet_ho_tro\"><\/span>Tr\u00ecnh duy\u1ec7t h\u1ed7 tr\u1ee3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>C\u1ea3 5 tr\u00ecnh duy\u1ec7t l\u1edbn nh\u1ea5t \u0111\u1ec1u h\u1ed7 tr\u1ee3 th\u1ebb n\u00e0y.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Su_khac_nhau_giua_HTML_401_va_HTML5\"><\/span>S\u1ef1 kh\u00e1c nhau gi\u1eefa HTML 4.01 v\u00e0 HTML5<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Trong HTML 4.01, th\u1ebb &lt;head&gt; b\u1eaft bu\u1ed9c ph\u1ea3i c\u00f3.<\/p>\n\n\n\n<p>Trong HTML5, th\u1ebb &lt;head&gt; c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c b\u1ecf qua. \u0110o\u1ea1n code b\u00ean d\u01b0\u1edbi v\u1eabn h\u1ee3p l\u1ec7 trong HTML5:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;!DOCTYPE html>\n&lt;html>\n&lt;title>Ti\u00eau \u0111\u1ec1 c\u1ee7a t\u00e0i li\u1ec7u&lt;\/title>\n\n&lt;body>\n\n&lt;h1>\u0110\u00e2y l\u00e0 ti\u00eau \u0111\u1ec1&lt;\/h1>\n\n&lt;p>\u0110\u00e2y l\u00e0 v\u0103n b\u1ea3n.&lt;\/p>\n\n&lt;\/body>\n\n&lt;\/html><\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Thuoc_tinh\"><\/span>Thu\u1ed9c t\u00ednh<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table w3-table-all notranslate\"><table><tbody><tr><th>Thu\u1ed9c t\u00ednh<\/th><th>Gi\u00e1 tr\u1ecb<\/th><th>M\u00f4 t\u1ea3<\/th><\/tr><tr><td>profile<\/td><td><i>URL<\/i><\/td><td><span class=\"deprecated\">Kh\u00f4ng h\u1ed7 tr\u1ee3 trong HTML5<\/span> <br><br>Ch\u1ec9 \u0111\u1ecbnh m\u1ed9t URL t\u1edbi m\u1ed9t t\u00e0i li\u1ec7u c\u00f3 ch\u1ee9a t\u1eadp h\u1ee3p c\u00e1c quy t\u1eafc. C\u00e1c quy t\u1eafc c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ecdc b\u1edfi tr\u00ecnh duy\u1ec7t \u0111\u1ec3 hi\u1ec3u r\u00f5 th\u00f4ng tin trong n\u1ed9i dung thu\u1ed9c t\u00ednh c\u1ee7a c\u00e1c th\u1ebb &lt;meta> <\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>V\u00ed d\u1ee5 v\u1ec1 t\u00e0i li\u1ec7u HTML, v\u1edbi th\u1ebb title b\u00ean trong khu v\u1ef1c c\u1ee7a th\u1ebb head: \u0110\u1ecbnh ngh\u0129a v\u00e0 c\u00e1ch d\u00f9ng Th\u1ebb &lt;head> \u0111\u01b0\u1ee3c d\u00f9ng v\u00e0o m\u1ee5c \u0111\u00edch ch\u1ee9a t\u1ea5t c\u1ea3 c\u00e1c &#8220;th\u00f4ng tin \u0111\u1ea7u&#8221;. Th\u1ebb &lt;head&gt; c\u00f3 th\u1ec3 ch\u1ee9a ti\u00eau \u0111\u1ec1 c\u1ee7a t\u00e0i li\u1ec7u, m\u00e3 script, style CSS, c\u00e1c th\u00f4ng tin meta v\u00e0 nhi\u1ec1u &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[235],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Th\u1ebb head trong HTML &#8226; Ki\u1ebfn c\u00e0ng<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/kiencang.net\/the-head-trong-html\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Th\u1ebb head trong HTML &#8226; Ki\u1ebfn c\u00e0ng\" \/>\n<meta property=\"og:description\" content=\"V\u00ed d\u1ee5 v\u1ec1 t\u00e0i li\u1ec7u HTML, v\u1edbi th\u1ebb title b\u00ean trong khu v\u1ef1c c\u1ee7a th\u1ebb head: \u0110\u1ecbnh ngh\u0129a v\u00e0 c\u00e1ch d\u00f9ng Th\u1ebb &lt;head&gt; \u0111\u01b0\u1ee3c d\u00f9ng v\u00e0o m\u1ee5c \u0111\u00edch ch\u1ee9a t\u1ea5t c\u1ea3 c\u00e1c &#8220;th\u00f4ng tin \u0111\u1ea7u&#8221;. Th\u1ebb &lt;head&gt; c\u00f3 th\u1ec3 ch\u1ee9a ti\u00eau \u0111\u1ec1 c\u1ee7a t\u00e0i li\u1ec7u, m\u00e3 script, style CSS, c\u00e1c th\u00f4ng tin meta v\u00e0 nhi\u1ec1u &hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/kiencang.net\/the-head-trong-html\/\" \/>\n<meta property=\"og:site_name\" content=\"Ki\u1ebfn c\u00e0ng\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/anhducnguyen87\/\" \/>\n<meta property=\"article:published_time\" content=\"2016-06-19T04:56:45+00:00\" \/>\n<meta name=\"author\" content=\"Nguy\u1ec5n \u0110\u1ee9c Anh\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"Nguy\u1ec5n \u0110\u1ee9c Anh\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 ph\u00fat\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Th\u1ebb head trong HTML &#8226; Ki\u1ebfn c\u00e0ng","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/kiencang.net\/the-head-trong-html\/","og_locale":"vi_VN","og_type":"article","og_title":"Th\u1ebb head trong HTML &#8226; Ki\u1ebfn c\u00e0ng","og_description":"V\u00ed d\u1ee5 v\u1ec1 t\u00e0i li\u1ec7u HTML, v\u1edbi th\u1ebb title b\u00ean trong khu v\u1ef1c c\u1ee7a th\u1ebb head: \u0110\u1ecbnh ngh\u0129a v\u00e0 c\u00e1ch d\u00f9ng Th\u1ebb &lt;head> \u0111\u01b0\u1ee3c d\u00f9ng v\u00e0o m\u1ee5c \u0111\u00edch ch\u1ee9a t\u1ea5t c\u1ea3 c\u00e1c &#8220;th\u00f4ng tin \u0111\u1ea7u&#8221;. Th\u1ebb &lt;head&gt; c\u00f3 th\u1ec3 ch\u1ee9a ti\u00eau \u0111\u1ec1 c\u1ee7a t\u00e0i li\u1ec7u, m\u00e3 script, style CSS, c\u00e1c th\u00f4ng tin meta v\u00e0 nhi\u1ec1u &hellip;","og_url":"https:\/\/kiencang.net\/the-head-trong-html\/","og_site_name":"Ki\u1ebfn c\u00e0ng","article_author":"https:\/\/www.facebook.com\/anhducnguyen87\/","article_published_time":"2016-06-19T04:56:45+00:00","author":"Nguy\u1ec5n \u0110\u1ee9c Anh","twitter_card":"summary_large_image","twitter_misc":{"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi":"Nguy\u1ec5n \u0110\u1ee9c Anh","\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc":"2 ph\u00fat"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/kiencang.net\/the-head-trong-html\/","url":"https:\/\/kiencang.net\/the-head-trong-html\/","name":"Th\u1ebb head trong HTML &#8226; Ki\u1ebfn c\u00e0ng","isPartOf":{"@id":"https:\/\/kiencang.net\/#website"},"datePublished":"2016-06-19T04:56:45+00:00","dateModified":"2016-06-19T04:56:45+00:00","author":{"@id":"https:\/\/kiencang.net\/#\/schema\/person\/5e7e1a04d8d1218ad8c421ba43d25c16"},"breadcrumb":{"@id":"https:\/\/kiencang.net\/the-head-trong-html\/#breadcrumb"},"inLanguage":"vi","potentialAction":[{"@type":"ReadAction","target":["https:\/\/kiencang.net\/the-head-trong-html\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/kiencang.net\/the-head-trong-html\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/kiencang.net\/"},{"@type":"ListItem","position":2,"name":"Th\u1ebb head trong HTML"}]},{"@type":"WebSite","@id":"https:\/\/kiencang.net\/#website","url":"https:\/\/kiencang.net\/","name":"Ki\u1ebfn c\u00e0ng","description":"\u00d4m l\u00fd thuy\u1ebft, h\u00f4n th\u1ef1c h\u00e0nh","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/kiencang.net\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"vi"},{"@type":"Person","@id":"https:\/\/kiencang.net\/#\/schema\/person\/5e7e1a04d8d1218ad8c421ba43d25c16","name":"Nguy\u1ec5n \u0110\u1ee9c Anh","image":{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/kiencang.net\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/6d71f9b89393952a8382e30dad26c1ec?s=96&d=monsterid&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/6d71f9b89393952a8382e30dad26c1ec?s=96&d=monsterid&r=g","caption":"Nguy\u1ec5n \u0110\u1ee9c Anh"},"description":"Sinh n\u0103m 1987, t\u1ed1t nghi\u1ec7p Cao \u0111\u1eb3ng th\u1ef1c h\u00e0nh FPT qu\u00e3ng 2014, chuy\u00ean ng\u00e0nh Thi\u1ebft k\u1ebf website. T\u00f4i th\u00edch Content, SEO, Ads, T\u0103ng t\u1ed1c website v\u00e0 Th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed. B\u00ean c\u1ea1nh b\u00e0i t\u1ef1 vi\u1ebft, t\u00f4i c\u0169ng d\u1ecbch nhi\u1ec1u n\u1ed9i dung th\u00fa v\u1ecb c\u1ee7a c\u00e1c t\u00e1c gi\u1ea3 kh\u00e1c nhau. FB c\u00e1 nh\u00e2n: facebook.com\/anhducnguyen87. 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