{"id":10874,"date":"2013-07-11T17:53:00","date_gmt":"2013-07-11T17:53:00","guid":{"rendered":"https:\/\/kiencang.net\/2013\/07\/11\/the-h1-toi-the-h6-trong-html-tu-vua-quan-cho-den-thu-dan\/"},"modified":"2022-08-20T21:19:58","modified_gmt":"2022-08-20T14:19:58","slug":"the-h1-h6-html","status":"publish","type":"post","link":"https:\/\/kiencang.net\/the-h1-h6-html\/","title":{"rendered":"Th\u1ebb H1 t\u1edbi th\u1ebb H6 trong HTML &#8211; t\u1eeb vua quan cho \u0111\u1ebfn th\u1ee9 d\u00e2n"},"content":{"rendered":"\n<p>C\u00e1c th\u1ebb t\u1eeb h1, h2 cho \u0111\u1ebfn h6 d\u00f9ng \u0111\u1ec3 \u0111\u1ecbnh ngh\u0129a c\u00e1c ti\u00eau \u0111\u1ec1, h1 d\u00f9ng cho ti\u00eau \u0111\u1ec1 quan tr\u1ecdng nh\u1ea5t, h2 d\u00f9ng cho ti\u00eau \u0111\u1ec1 quan tr\u1ecdng th\u1ee9 hai, cho \u0111\u1ebfn h6 d\u00f9ng cho ti\u00eau \u0111\u1ec1 \u00edt quan tr\u1ecdng nh\u1ea5t.<\/p>\n\n\n\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 \u0111o\u1ea1n code \u0111\u01b0\u1ee3c ch\u1ee5p t\u1eeb m\u1ed9t b\u00e0i vi\u1ebft t\u1eeb trang Vnexpress:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"521\" height=\"49\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2021\/02\/the-tieu-de.png\" alt=\"\" class=\"wp-image-12453\" srcset=\"https:\/\/kiencang.net\/wp-content\/uploads\/2021\/02\/the-tieu-de.png 521w, https:\/\/kiencang.net\/wp-content\/uploads\/2021\/02\/the-tieu-de-300x28.png 300w\" sizes=\"(max-width: 521px) 100vw, 521px\" \/><\/figure><\/div>\n\n\n<p>B\u1ea1n c\u00f3 th\u1ebf th\u1ea5y t\u00ean c\u1ee7a b\u00e0i vi\u1ebft \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng th\u1ebb h1, \u0111o\u1ea1n xem tr\u01b0\u1edbc n\u1ed9i dung s\u1eed d\u1ee5ng th\u1ebb h2 \u00edt quan tr\u1ecdng h\u01a1n.<\/p>\n\n\n\n<p>C\u00e1ch s\u1eed d\u1ee5ng th\u1ebb ti\u00eau \u0111\u1ec1 h r\u1ea5t \u0111\u01a1n gi\u1ea3n, \u0111\u00e2y l\u00e0 code m\u1eabu:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;h1&gt;Ti\u00eau \u0111\u1ec1 1&lt;\/h1&gt;\n&lt;h2&gt;Ti\u00eau \u0111\u1ec1 2&lt;\/h2&gt;\n&lt;h3&gt;Ti\u00eau \u0111\u1ec1 3&lt;\/h3&gt;\n&lt;h4&gt;Ti\u00eau \u0111\u1ec1 4&lt;\/h4&gt;\n&lt;h5&gt;Ti\u00eau \u0111\u1ec1 5&lt;\/h5&gt;\n&lt;h6&gt;Ti\u00eau \u0111\u1ec1 6&lt;\/h6&gt;<\/code><\/pre>\n\n\n\n<p>\u0110o\u1ea1n \u1edf tr\u00ean s\u1ebd hi\u1ec3n th\u1ecb ra ngo\u00e0i tr\u00ecnh duy\u1ec7t th\u1ebf n\u00e0y:<\/p>\n\n\n\n<h1>Ti\u00eau \u0111\u1ec1 1<\/h1>\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-6577d7312a88c\" ><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-6577d7312a88c\"  type=\"checkbox\" id=\"item-6577d7312a88c\"><\/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-h1-h6-html\/#Tieu_de_2\" title=\"Ti\u00eau \u0111\u1ec1 2\">Ti\u00eau \u0111\u1ec1 2<\/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-h1-h6-html\/#Vai_tro_trong_SEO\" title=\"Vai tr\u00f2 trong SEO\">Vai tr\u00f2 trong SEO<\/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-h1-h6-html\/#CSS_cho_the_h\" title=\"CSS cho th\u1ebb h\">CSS cho th\u1ebb h<\/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-h1-h6-html\/#Cac_the_h_nao_duoc_su_dung_trong_thuc_te\" title=\"C\u00e1c th\u1ebb h n\u00e0o \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong th\u1ef1c t\u1ebf?\">C\u00e1c th\u1ebb h n\u00e0o \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong th\u1ef1c t\u1ebf?<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Tieu_de_2\"><\/span>Ti\u00eau \u0111\u1ec1 2<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3>Ti\u00eau \u0111\u1ec1 3<\/h3>\n<h4>Ti\u00eau \u0111\u1ec1 4<\/h4>\n<h5>Ti\u00eau \u0111\u1ec1 5<\/h5>\n<h6>Ti\u00eau \u0111\u1ec1 6<\/h6>\n\n\n\n<p>B\u1ea1n c\u00f3 th\u1ec3 th\u1ea5y ti\u00eau \u0111\u1ec1 h quan tr\u1ecdng h\u01a1n theo m\u1eb7c \u0111\u1ecbnh c\u1ee7a tr\u00ecnh duy\u1ec7t s\u1ebd c\u00f3 k\u00edch c\u1ee1 l\u1edbn h\u01a1n v\u00e0 t\u1ea5t c\u1ea3 c\u00e1c th\u1ebb h \u0111\u1ec1u \u0111\u01b0\u1ee3c b\u00f4i \u0111\u1eadm. N\u1ebfu mu\u1ed1n \u0111i\u1ec1u ch\u1ec9nh style c\u1ee7a th\u1ebb h, ta th\u1ef1c hi\u1ec7n trong CSS.<\/p>\n\n\n\n<p>M\u1ee5c \u0111\u00edch c\u1ee7a c\u00e1c th\u1ebb ti\u00eau \u0111\u1ec1 h l\u00e0 l\u00e0m cho trang web c\u1ee7a b\u1ea1n c\u00f3 c\u1ea5u tr\u00fac d\u1ec5 quan s\u00e1t v\u1edbi m\u00e1y t\u00ecm ki\u1ebfm, th\u00f4ng b\u00e1o cho n\u00f3 bi\u1ebft \u0111\u00e2u l\u00e0 c\u00e1i quan tr\u1ecdng, v\u00e0 c\u00e1i n\u00e0o l\u00e0 quan tr\u1ecdng h\u01a1n. Trong SEO ng\u01b0\u1eddi ta r\u1ea5t ch\u00fa \u00fd \u0111\u1ebfn th\u1ebb ti\u00eau \u0111\u1ec1 h1.<\/p>\n\n\n\n<p>T\u1ea5t nhi\u00ean b\u1ea1n ch\u1ec9 n\u00ean d\u00f9ng th\u1ebb ti\u00eau \u0111\u1ec1 v\u1edbi ph\u1ea7n v\u0103n b\u1ea3n l\u00e0 ti\u00eau \u0111\u1ec1, kh\u00f4ng n\u00ean d\u00f9ng n\u00f3 \u0111\u1ec3 l\u00e0m ch\u1eef \u0111\u1eadm ho\u1eb7c to trong v\u0103n b\u1ea3n th\u00f4ng th\u01b0\u1eddng, v\u0103n b\u1ea3n th\u00f4ng th\u01b0\u1eddng n\u1eb1m trong <a href=\"https:\/\/kiencang.net\/the-p-trong-html\/\" target=\"_blank\" rel=\"noreferrer noopener\">th\u1ebb &lt;p&gt;<\/a>, v\u00e0 \u0111\u1ec3 b\u00f4i \u0111\u1eadm ch\u1eef ta d\u00f9ng <a href=\"https:\/\/kiencang.net\/b-trong-html\/\" target=\"_blank\" rel=\"noreferrer noopener\">th\u1ebb &lt;b&gt;<\/a> ho\u1eb7c <a href=\"https:\/\/kiencang.net\/the-strong-trong-html\/\" target=\"_blank\" rel=\"noreferrer noopener\">th\u1ebb &lt;strong&gt;<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Vai_tro_trong_SEO\"><\/span>Vai tr\u00f2 trong SEO<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>C\u00e1c th\u1ebb h2, h3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m ti\u00eau \u0111\u1ec1 ph\u1ee5 trong c\u00e1c b\u00e0i vi\u1ebft d\u00e0i, n\u1ebfu k\u1ebft h\u1ee3p v\u1edbi m\u1ee5c l\u1ee5c th\u00ec khi ng\u01b0\u1eddi d\u00f9ng t\u00ecm ki\u1ebfm tr\u00ean Google, c\u00f3 kh\u1ea3 n\u0103ng c\u00e1c li\u00ean k\u1ebft ph\u1ee5 \u0111\u00f3 s\u1ebd xu\u1ea5t hi\u1ec7n trong k\u1ebft qu\u1ea3 t\u00ecm ki\u1ebfm. V\u00ed d\u1ee5:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"620\" height=\"134\" src=\"https:\/\/kiencang.net\/wp-content\/uploads\/2021\/02\/lien-ket-phu.png\" alt=\"li\u00ean k\u1ebft c\u1ee7a ti\u00eau \u0111\u1ec1 trong k\u1ebft qu\u1ea3 t\u00ecm ki\u1ebfm\" class=\"wp-image-13542\" srcset=\"https:\/\/kiencang.net\/wp-content\/uploads\/2021\/02\/lien-ket-phu.png 620w, https:\/\/kiencang.net\/wp-content\/uploads\/2021\/02\/lien-ket-phu-300x65.png 300w\" sizes=\"(max-width: 620px) 100vw, 620px\" \/><\/figure><\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"CSS_cho_the_h\"><\/span>CSS cho th\u1ebb h<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><a href=\"https:\/\/kiencang.net\/8-thuoc-tinh-van-ban-trong-css\/\" target=\"_blank\" rel=\"noreferrer noopener\">B\u1ea5t k\u1ef3 CSS n\u00e0o th\u1ef1c hi\u1ec7n \u0111\u01b0\u1ee3c v\u1edbi text<\/a> \u0111\u1ec1u th\u1ef1c hi\u1ec7n \u0111\u01b0\u1ee3c v\u1edbi th\u1ebb h v\u00ed d\u1ee5 nh\u01b0 text-indent, word-space. Ngo\u00e0i ra l\u00e0 c\u00e1c l\u1edbp gi\u1ea3, v\u00ed d\u1ee5 nh\u01b0 <a href=\"https:\/\/kiencang.net\/lop-gia-first-letter-trong-css\/\" target=\"_blank\" rel=\"noreferrer noopener\">first-letter<\/a>.<\/p>\n\n\n\n<p>V\u00ed d\u1ee5:<\/p>\n\n\n\n<style>\n#demo1:first-letter\n{\nfont-size:250%;\ncolor:green;\nfont-weight:bold;\n}\n<\/style>\n<h3 id=\"demo1\" style=\"font-family:arial; font-size:20px; color:grey;word-space:5px;text-indent: 30px;\">\u0110\u00e2y l\u00e0 v\u00ed d\u1ee5 v\u1ec1 CSS cho th\u1ebb h<\/h3>\n\n\n\n<p>Code m\u1eabu:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;style&gt;\n#demo1:first-letter\n{\nfont-size:250%;\ncolor:green;\nfont-weight:bold;\n}\n&lt;\/style&gt;\n&lt;h3 id=\"demo1\" style=\"font-family:arial; font-size:20px;color:grey;word-space:5px;text-indent: 30px;\"&gt;\u0110\u00e2y l\u00e0 v\u00ed d\u1ee5 v\u1ec1 CSS cho th\u1ebb h&lt;\/h3&gt;<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cac_the_h_nao_duoc_su_dung_trong_thuc_te\"><\/span>C\u00e1c th\u1ebb h n\u00e0o \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong th\u1ef1c t\u1ebf?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Th\u00f4ng th\u01b0\u1eddng th\u1ebb h1 s\u1eed d\u1ee5ng cho ti\u00eau \u0111\u1ec1 ch\u00ednh.<\/p>\n\n\n\n<p>Th\u1ebb h2 s\u1eed d\u1ee5ng cho ti\u00eau \u0111\u1ec1 ph\u1ee5.<\/p>\n\n\n\n<p>C\u00f9ng l\u1eafm ng\u01b0\u1eddi ta d\u00f9ng \u0111\u1ebfn th\u1ebb h3 b\u00ean trong h2 trong c\u00e1c b\u00e0i vi\u1ebft l\u1edbn, c\u00f2n h4, h5, h6 r\u1ea5t \u00edt khi \u0111\u01b0\u1ee3c d\u00f9ng.<\/p>\n\n\n\n<p>Th\u00f4ng tin cu\u1ed1i c\u00f9ng: h l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a t\u1eeb heading.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00e1c th\u1ebb t\u1eeb h1, h2 cho \u0111\u1ebfn h6 d\u00f9ng \u0111\u1ec3 \u0111\u1ecbnh ngh\u0129a c\u00e1c ti\u00eau \u0111\u1ec1, h1 d\u00f9ng cho ti\u00eau \u0111\u1ec1 quan tr\u1ecdng nh\u1ea5t, h2 d\u00f9ng cho ti\u00eau \u0111\u1ec1 quan tr\u1ecdng th\u1ee9 hai, cho \u0111\u1ebfn h6 d\u00f9ng cho ti\u00eau \u0111\u1ec1 \u00edt quan tr\u1ecdng nh\u1ea5t. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 \u0111o\u1ea1n code \u0111\u01b0\u1ee3c ch\u1ee5p t\u1eeb m\u1ed9t b\u00e0i vi\u1ebft t\u1eeb &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","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 H1 t\u1edbi th\u1ebb H6 trong HTML - t\u1eeb vua quan cho \u0111\u1ebfn th\u1ee9 d\u00e2n &#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-h1-h6-html\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Th\u1ebb H1 t\u1edbi th\u1ebb H6 trong HTML - t\u1eeb vua quan cho \u0111\u1ebfn th\u1ee9 d\u00e2n &#8226; Ki\u1ebfn c\u00e0ng\" \/>\n<meta property=\"og:description\" content=\"C\u00e1c th\u1ebb t\u1eeb h1, h2 cho \u0111\u1ebfn h6 d\u00f9ng \u0111\u1ec3 \u0111\u1ecbnh ngh\u0129a c\u00e1c ti\u00eau \u0111\u1ec1, h1 d\u00f9ng cho ti\u00eau \u0111\u1ec1 quan tr\u1ecdng nh\u1ea5t, h2 d\u00f9ng cho ti\u00eau \u0111\u1ec1 quan tr\u1ecdng th\u1ee9 hai, cho \u0111\u1ebfn h6 d\u00f9ng cho ti\u00eau \u0111\u1ec1 \u00edt quan tr\u1ecdng nh\u1ea5t. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 \u0111o\u1ea1n code \u0111\u01b0\u1ee3c ch\u1ee5p t\u1eeb m\u1ed9t b\u00e0i vi\u1ebft t\u1eeb &hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/kiencang.net\/the-h1-h6-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=\"2013-07-11T17:53:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-08-20T14:19:58+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/kiencang.net\/wp-content\/uploads\/2021\/02\/the-tieu-de.png\" \/>\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=\"3 ph\u00fat\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Th\u1ebb H1 t\u1edbi th\u1ebb H6 trong HTML - t\u1eeb vua quan cho \u0111\u1ebfn th\u1ee9 d\u00e2n &#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-h1-h6-html\/","og_locale":"vi_VN","og_type":"article","og_title":"Th\u1ebb H1 t\u1edbi th\u1ebb H6 trong HTML - t\u1eeb vua quan cho \u0111\u1ebfn th\u1ee9 d\u00e2n &#8226; Ki\u1ebfn c\u00e0ng","og_description":"C\u00e1c th\u1ebb t\u1eeb h1, h2 cho \u0111\u1ebfn h6 d\u00f9ng \u0111\u1ec3 \u0111\u1ecbnh ngh\u0129a c\u00e1c ti\u00eau \u0111\u1ec1, h1 d\u00f9ng cho ti\u00eau \u0111\u1ec1 quan tr\u1ecdng nh\u1ea5t, h2 d\u00f9ng cho ti\u00eau \u0111\u1ec1 quan tr\u1ecdng th\u1ee9 hai, cho \u0111\u1ebfn h6 d\u00f9ng cho ti\u00eau \u0111\u1ec1 \u00edt quan tr\u1ecdng nh\u1ea5t. 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