{"id":2433,"date":"2016-06-17T14:05:55","date_gmt":"2016-06-17T14:05:55","guid":{"rendered":"https:\/\/kiencang.net\/?p=2433"},"modified":"2022-08-24T18:14:34","modified_gmt":"2022-08-24T11:14:34","slug":"html-trong-html","status":"publish","type":"post","link":"https:\/\/kiencang.net\/html-trong-html\/","title":{"rendered":"Th\u1ebb html trong HTML"},"content":{"rendered":"\n<p>M\u1ed9t v\u00ed d\u1ee5 v\u1ec1 trang HTML5:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;!DOCTYPE HTML&gt;\n&lt;html&gt;\n\n&lt;head&gt;\n&lt;title&gt;Ti\u00eau \u0111\u1ec1 c\u1ee7a trang web&lt;\/title&gt;\n&lt;\/head&gt;\n\n&lt;body&gt;\nN\u1ed9i dung v\u0103n b\u1ea3n\u2026\u2026\n&lt;\/body&gt;\n\n&lt;\/html&gt;<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\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-6577d73471101\" ><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-6577d73471101\"  type=\"checkbox\" id=\"item-6577d73471101\"><\/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\/html-trong-html\/#1_Dinh_nghia_va_cach_dung\" title=\"#1. \u0110\u1ecbnh ngh\u0129a v\u00e0 c\u00e1ch d\u00f9ng\">#1. \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\/html-trong-html\/#2_Trinh_duyet_ho_tro\" title=\"#2. Tr\u00ecnh duy\u1ec7t h\u1ed7 tr\u1ee3\">#2. 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\/html-trong-html\/#3_Su_khac_nhau_giua_HTML_va_XHTML\" title=\"#3. S\u1ef1 kh\u00e1c nhau gi\u1eefa HTML v\u00e0 XHTML\">#3. S\u1ef1 kh\u00e1c nhau gi\u1eefa HTML v\u00e0 XHTML<\/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\/html-trong-html\/#4_Cac_thuoc_tinh\" title=\"#4. C\u00e1c thu\u1ed9c t\u00ednh\">#4. C\u00e1c thu\u1ed9c t\u00ednh<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Dinh_nghia_va_cach_dung\"><\/span>#1. \u0110\u1ecbnh ngh\u0129a v\u00e0 c\u00e1ch d\u00f9ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Th\u1ebb <code>&lt;html><\/code> d\u00f9ng \u0111\u1ec3 n\u00f3i cho tr\u00ecnh duy\u1ec7t bi\u1ebft \u0111\u00e2y l\u00e0 t\u00e0i li\u1ec7u HTML.<\/p>\n\n\n\n<p>Th\u1ebb <code>&lt;html><\/code> l\u00e0 th\u1ebb g\u1ed1c trong t\u00e0i li\u1ec7u HTML.<\/p>\n\n\n\n<p>Th\u1ebb <code>&lt;html><\/code> ch\u1ee9a t\u1ea5t c\u00e1c c\u00e1c th\u1ebb HTML kh\u00e1c ngo\u1ea1i tr\u1eeb <a href=\"https:\/\/kiencang.net\/the-doctype-va-html-cap-doi-hoan-canh\/\" target=\"_blank\" rel=\"noreferrer noopener\">th\u1ebb &lt;!DOCTYPE><\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Trinh_duyet_ho_tro\"><\/span>#2. 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 \u0111\u1ec1u h\u1ed7 tr\u1ee3 (th\u1ef1c l\u00f2ng m\u00e0 n\u00f3i t\u00f4i kh\u00f4ng t\u01b0\u1edfng t\u01b0\u1ee3ng n\u1ed5i b\u1ea5t c\u1ee9 tr\u00ecnh duy\u1ec7t n\u00e0o m\u00e0 l\u1ea1i kh\u00f4ng h\u1ed7 tr\u1ee3 th\u1ebb n\u00e0y!).<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Su_khac_nhau_giua_HTML_va_XHTML\"><\/span>#3. S\u1ef1 kh\u00e1c nhau gi\u1eefa HTML v\u00e0 XHTML<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>C\u00e1c thu\u1ed9c t\u00ednh xmlns l\u00e0 c\u1ea7n thi\u1ebft\u00a0<a href=\"https:\/\/kiencang.net\/html-va-xhtml-giong-va-khac-nhau\/\" target=\"_blank\" rel=\"noreferrer noopener\">trong XHTML, nh\u01b0ng l\u1ea1i kh\u00f4ng h\u1ee3p l\u1ec7 trong HTML<\/a>. Tuy nhi\u00ean, ch\u01b0\u01a1ng tr\u00ecnh ki\u1ec3m tra t\u00ednh h\u1ee3p l\u1ec7 c\u1ee7a HTML t\u1ea1i http:\/\/w3.org kh\u00f4ng th\u00f4ng b\u00e1o g\u00ec khi thu\u1ed9c t\u00ednh xmlns kh\u00f4ng c\u00f3 trong t\u00e0i li\u1ec7u XHTML. \u0110i\u1ec1u n\u00e0y l\u00e0 b\u1edfi v\u00ec kh\u00f4ng gian t\u00ean <code>\u201cxmlns = http: \/\/www.w3.org\/1999\/xhtml\u201d<\/code> l\u00e0 m\u1eb7c \u0111\u1ecbnh, v\u00e0 s\u1ebd \u0111\u01b0\u1ee3c th\u00eam v\u00e0o c\u00e1c th\u1ebb <code>&lt;html><\/code> ngay c\u1ea3 khi b\u1ea1n kh\u00f4ng vi\u1ebft n\u00f3.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"gtx-body wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Cac_thuoc_tinh\"><\/span>#4. C\u00e1c thu\u1ed9c t\u00ednh<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>Thu\u1ed9c t\u00ednh<\/td><td>Gi\u00e1 tr\u1ecb<\/td><td>M\u00f4 t\u1ea3<\/td><\/tr><tr><td>manifest<\/td><td><i>URL<\/i><\/td><td>Ch\u1ec9 \u0111\u1ecbnh \u0111\u1ecba ch\u1ec9 c\u1ee7a t\u00e0i li\u1ec7u khi duy\u1ec7t ngo\u1ea1i tuy\u1ebfn (offline)<\/td><\/tr><tr><td>xmlns<\/td><td>http:\/\/www.w3.org\/1999\/xhtml<\/td><td>Ch\u1ec9 \u0111\u1ecbnh thu\u1ed9c t\u00ednh t\u00ean kh\u00f4ng gian c\u1ee7a XML (N\u1ebfu b\u1ea1n c\u1ea7n n\u1ed9i dung c\u1ee7a b\u1ea1n ph\u00f9 h\u1ee3p v\u1edbi XHTML)<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>M\u1ed9t v\u00ed d\u1ee5 v\u1ec1 trang HTML5: #1. \u0110\u1ecbnh ngh\u0129a v\u00e0 c\u00e1ch d\u00f9ng Th\u1ebb &lt;html> d\u00f9ng \u0111\u1ec3 n\u00f3i cho tr\u00ecnh duy\u1ec7t bi\u1ebft \u0111\u00e2y l\u00e0 t\u00e0i li\u1ec7u HTML. Th\u1ebb &lt;html> l\u00e0 th\u1ebb g\u1ed1c trong t\u00e0i li\u1ec7u HTML. Th\u1ebb &lt;html> ch\u1ee9a t\u1ea5t c\u00e1c c\u00e1c th\u1ebb HTML kh\u00e1c ngo\u1ea1i tr\u1eeb th\u1ebb &lt;!DOCTYPE> #2. Tr\u00ecnh duy\u1ec7t h\u1ed7 tr\u1ee3 C\u1ea3 5 &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 html 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\/html-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 html trong HTML &#8226; Ki\u1ebfn c\u00e0ng\" \/>\n<meta property=\"og:description\" content=\"M\u1ed9t v\u00ed d\u1ee5 v\u1ec1 trang HTML5: #1. \u0110\u1ecbnh ngh\u0129a v\u00e0 c\u00e1ch d\u00f9ng Th\u1ebb &lt;html&gt; d\u00f9ng \u0111\u1ec3 n\u00f3i cho tr\u00ecnh duy\u1ec7t bi\u1ebft \u0111\u00e2y l\u00e0 t\u00e0i li\u1ec7u HTML. Th\u1ebb &lt;html&gt; l\u00e0 th\u1ebb g\u1ed1c trong t\u00e0i li\u1ec7u HTML. Th\u1ebb &lt;html&gt; ch\u1ee9a t\u1ea5t c\u00e1c c\u00e1c th\u1ebb HTML kh\u00e1c ngo\u1ea1i tr\u1eeb th\u1ebb &lt;!DOCTYPE&gt; #2. 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Th\u1ebb &lt;html> l\u00e0 th\u1ebb g\u1ed1c trong t\u00e0i li\u1ec7u HTML. Th\u1ebb &lt;html> ch\u1ee9a t\u1ea5t c\u00e1c c\u00e1c th\u1ebb HTML kh\u00e1c ngo\u1ea1i tr\u1eeb th\u1ebb &lt;!DOCTYPE> #2. 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