{"id":68408,"date":"2024-05-09T18:16:06","date_gmt":"2024-05-09T11:16:06","guid":{"rendered":"https:\/\/itviec.com\/blog\/?p=68408"},"modified":"2024-05-09T18:16:06","modified_gmt":"2024-05-09T11:16:06","slug":"xuong-dong-trong-html","status":"publish","type":"post","link":"https:\/\/itviec.com\/blog\/xuong-dong-trong-html\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn c\u00e1ch xu\u1ed1ng d\u00f2ng trong HTML \u0111\u01a1n gi\u1ea3n v\u00e0 nhanh ch\u00f3ng"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">N\u1ed9i dung b\u00e0i vi\u1ebft<\/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\"><span class=\"ez-toc-js-icon-con\"><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><\/span><\/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:\/\/itviec.com\/blog\/xuong-dong-trong-html\/#Xuong_dong_trong_HTML_la_gi\" >Xu\u1ed1ng d\u00f2ng trong HTML l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/itviec.com\/blog\/xuong-dong-trong-html\/#Cach_xuong_dong_trong_HTML_don_gian\" >C\u00e1ch xu\u1ed1ng d\u00f2ng trong HTML \u0111\u01a1n gi\u1ea3n\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/itviec.com\/blog\/xuong-dong-trong-html\/#Cac_cau_hoi_ve_xuong_dong_trong_HTML_thuong_gap\" >C\u00e1c c\u00e2u h\u1ecfi v\u1ec1 xu\u1ed1ng d\u00f2ng trong HTML th\u01b0\u1eddng g\u1eb7p\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/itviec.com\/blog\/xuong-dong-trong-html\/#Tong_ket_ve_xuong_dong_trong_HTML\" >T\u1ed5ng k\u1ebft v\u1ec1 xu\u1ed1ng d\u00f2ng trong HTML\u00a0<\/a><\/li><\/ul><\/nav><\/div>\n<p><em><strong>Trong HTML, m\u1ed9t \u0111o\u1ea1n v\u0103n lu\u00f4n b\u1eaft \u0111\u1ea7u tr\u00ean m\u1ed9t d\u00f2ng m\u1edbi, th\u1ebf nh\u01b0ng \u0111\u1ec3 t\u1ea1o \u0111\u01b0\u1ee3c d\u00f2ng m\u1edbi cho v\u0103n b\u1ea3n trong m\u1ed9t \u0111o\u1ea1n v\u0103n th\u00ec b\u1ea1n s\u1ebd c\u1ea7n t\u1ea1o ng\u1eaft d\u00f2ng trong HTML. V\u1eady l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 xu\u1ed1ng d\u00f2ng trong HTML?<\/strong><\/em><\/p>\n<p><span style=\"font-weight: 400;\">\u0110\u1ecdc b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u00ecm hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">T\u1ea1i sao n\u00ean s\u1eed d\u1ee5ng xu\u1ed1ng d\u00f2ng trong HTML.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">C\u00e1ch t\u1ea1o ng\u1eaft d\u00f2ng trong HTML m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n v\u00e0 nhanh ch\u00f3ng.<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Xuong_dong_trong_HTML_la_gi\"><\/span><b> Xu\u1ed1ng d\u00f2ng trong HTML l\u00e0 g\u00ec?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Xu\u1ed1ng d\u00f2ng trong HTML l\u00e0 v\u1ecb tr\u00ed m\u00e0 t\u1ea1i \u0111\u00f3 m\u1ed9t d\u00f2ng k\u1ebft th\u00fac theo chi\u1ec1u ngang v\u00e0 d\u00f2ng ti\u1ebfp theo s\u1ebd b\u1eaft \u0111\u1ea7u tr\u00ean m\u1ed9t d\u00f2ng m\u1edbi. Th\u00f4ng th\u01b0\u1eddng, \u0111\u1ec3 t\u1ea1o m\u1ed9t \u0111o\u1ea1n ng\u1eaft trong v\u0103n b\u1ea3n, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng th\u1ebb &lt;p&gt; \u1edf cu\u1ed1i m\u1ed7i d\u00f2ng nh\u01b0 sau:<\/span><\/p>\n<pre>&lt;p&gt;ITviec Blog&lt;\/p&gt;\r\n&lt;p&gt;Trang th\u00f4ng tin ph\u00e1t tri\u1ec3n s\u1ef1 nghi\u1ec7p IT&lt;\/p&gt;\r\n&lt;p&gt;T\u1ed5ng h\u1ee3p nh\u1eefng b\u00e0i vi\u1ebft m\u1edbi nh\u1ea5t v\u1ec1 IT&lt;\/p&gt;<\/pre>\n<p>K\u1ebft qu\u1ea3 hi\u1ec3n th\u1ecb:<\/p>\n<table>\n<tbody>\n<tr>\n<td>\n<p style=\"text-align: left;\"><span style=\"font-weight: 400;\">ITviec Blog<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-weight: 400;\">Trang th\u00f4ng tin ph\u00e1t tri\u1ec3n s\u1ef1 nghi\u1ec7p IT<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-weight: 400;\">T\u1ed5ng h\u1ee3p nh\u1eefng b\u00e0i vi\u1ebft m\u1edbi nh\u1ea5t v\u1ec1 IT<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">Tuy nhi\u00ean, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y kh\u00f4ng \u0111em l\u1ea1i hi\u1ec7u qu\u1ea3 cao b\u1edfi v\u00ec b\u1ea1n \u0111\u00e3 t\u1ea1o th\u00e0nh ba \u0111o\u1ea1n v\u0103n. Trong tr\u01b0\u1eddng h\u1ee3p tr\u00ecnh duy\u1ec7t web hi\u1ec3n th\u1ecb n\u1ed9i dung n\u00e0y s\u1ebd tr\u1edf th\u00e0nh ba \u0111o\u1ea1n v\u0103n nh\u1ecf thay v\u00ec m\u1ed9t c\u00e2u \u0111\u01b0\u1ee3c ng\u1eaft d\u00f2ng. \u0110i\u1ec1u n\u00e0y s\u1ebd g\u00e2y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng truy c\u1eadp web.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Ch\u00ednh v\u00ec v\u1eady, b\u1ea1n n\u00ean \u01b0u ti\u00ean s\u1eed d\u1ee5ng nh\u1eefng ph\u1ea7n t\u1eed c\u00f3 c\u00f4ng d\u1ee5ng ph\u00f9 h\u1ee3p \u0111\u1ec3 t\u1ea1o ng\u1eaft d\u00f2ng cho trang web.<\/span><\/p>\n<blockquote><p><span style=\"font-weight: 400;\">Xem th\u00eam: <\/span><a href=\"https:\/\/itviec.com\/blog\/html-la-gi\/\" target=\"_blank\" rel=\"noopener\"><b>Gi\u1ea3i \u0111\u00e1p \u201ct\u1ea5t t\u1ea7n t\u1eadt\u201d nh\u1eefng \u0111i\u1ec1u c\u1ea7n bi\u1ebft v\u1ec1 HTML<\/b><\/a><\/p><\/blockquote>\n<h2><span class=\"ez-toc-section\" id=\"Cach_xuong_dong_trong_HTML_don_gian\"><\/span><b>C\u00e1ch xu\u1ed1ng d\u00f2ng trong HTML \u0111\u01a1n gi\u1ea3n\u00a0<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><b>S\u1eed d\u1ee5ng th\u1ebb &lt;br&gt;\u00a0<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Trong HTML, th\u1ebb &lt;br&gt; th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ea1o ng\u1eaft d\u00f2ng trong v\u0103n b\u1ea3n, b\u1ea1n c\u00f3 th\u1ec3 th\u00eam n\u00f3 v\u00e0o b\u1ea5t c\u1ee9 n\u01a1i n\u00e0o b\u1ea1n mu\u1ed1n k\u1ebft th\u00fac v\u00e0 t\u1ea1o m\u1ed9t d\u00f2ng m\u1edbi. Th\u1ebb &lt;br&gt; c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c n\u1ed9i dung v\u1ec1 b\u00e0i th\u01a1, l\u1eddi b\u00e0i h\u00e1t, \u0111\u1ecba ch\u1ec9 ho\u1eb7c n\u1ed9i dung c\u1ea7n xu\u1ed1ng d\u00f2ng ph\u00f9 h\u1ee3p.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Th\u1ebb &lt;br&gt; l\u00e0 m\u1ed9t ph\u1ea7n t\u1eed kh\u00f4ng c\u00f3 th\u1ebb \u0111\u00f3ng, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng th\u1ebb n\u00e0y cho c\u00e1c d\u1ea1ng ph\u1ea7n t\u1eed n\u1ed9i tuy\u1ebfn kh\u00e1c nh\u01b0 li\u00ean k\u1ebft ho\u1eb7c n\u1ed9i dung v\u0103n b\u1ea3n. C\u1ee5 th\u1ec3 nh\u01b0 sau:\u00a0<\/span><\/p>\n<pre>&lt;p&gt;\r\n\u00a0 \u00a0 ITviec Blog\r\n\u00a0 \u00a0 &lt;br&gt;\r\n\u00a0 \u00a0 \u00dd t\u01b0\u1edfng ph\u00e1t tri\u1ec3n\r\n\u00a0 \u00a0 &lt;br&gt;\r\n\u00a0 \u00a0 s\u1ef1 nghi\u1ec7p IT\r\n&lt;\/p&gt;\r\n\r\n&lt;div&gt;\r\n\u00a0 \u00a0 &lt;a href=\"https:\/\/itviec.com\/blog\/\"&gt;ITviec&lt;\/a&gt;\r\n\u00a0 \u00a0 &lt;br&gt;\r\n\u00a0 \u00a0 &lt;a href=\"https:\/\/itviec.com\/blog\/\"&gt;Blog&lt;\/a&gt;\r\n&lt;\/div&gt;<\/pre>\n<p>K\u1ebft qu\u1ea3 hi\u1ec3n th\u1ecb:<\/p>\n<table>\n<tbody>\n<tr>\n<td>\n<p style=\"text-align: left;\"><span style=\"font-weight: 400;\">ITviec Blog<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-weight: 400;\">\u00dd t\u01b0\u1edfng ph\u00e1t tri\u1ec3n<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"font-weight: 400;\">s\u1ef1 nghi\u1ec7p IT<\/span><\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: left;\"><a style=\"font-family: inherit; font-size: inherit;\" href=\"https:\/\/itviec.com\/blog\/\">ITviec<\/a><\/p>\n<p style=\"text-align: left;\"><a href=\"https:\/\/itviec.com\/blog\/\"><span style=\"font-weight: 400;\">Blog<\/span><\/a><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">\u0110\u1ed1i v\u1edbi ph\u1ea7n t\u1eed n\u1ed9i tuy\u1ebfn &lt;a&gt;, b\u1ea1n s\u1ebd d\u00f9ng th\u1ebb &lt;br&gt; v\u00e0o gi\u1eefa hai \u0111\u01b0\u1eddng link \u0111\u1ec3 ng\u1eaft li\u00ean k\u1ebft th\u00e0nh hai d\u00f2ng kh\u00e1c nhau. T\u01b0\u01a1ng t\u1ef1 v\u1edbi n\u1ed9i dung v\u0103n b\u1ea3n th\u00f4ng th\u01b0\u1eddng, b\u1ea1n c\u0169ng ch\u00e8n th\u1ebb &lt;br&gt; v\u00e0o v\u1ecb tr\u00ed mu\u1ed1n ng\u1eaft d\u00f2ng, trang web s\u1ebd hi\u1ec3n th\u1ecb n\u1ed9i dung ph\u00f9 h\u1ee3p v\u1edbi nh\u1eefng g\u00ec b\u1ea1n \u0111\u00e3 l\u1eadp tr\u00ecnh.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">M\u1ed9t v\u00ed d\u1ee5 kh\u00e1c th\u1ec3 hi\u1ec7n s\u1ef1 ph\u1ed5 bi\u1ebfn c\u1ee7a &lt;br&gt; \u0111\u1ec3 hi\u1ec3n th\u1ecb c\u00e1c b\u00e0i th\u01a1 ho\u1eb7c l\u1eddi b\u00e0i h\u00e1t. B\u1ea1n s\u1ebd g\u00f3i g\u1ecdn c\u00e1c kh\u1ed5 th\u01a1 trong th\u1ebb &lt;p&gt; v\u00e0 \u0111\u1eb7t th\u1ebb &lt;br&gt; v\u00e0o nh\u1eefng v\u1ecb tr\u00ed mu\u1ed1n ng\u1eaft d\u00f2ng trong m\u1ed7i kh\u1ed5 th\u01a1, v\u0103n b\u1ea3n sau th\u1ebb &lt;br&gt; s\u1ebd \u0111\u01b0\u1ee3c b\u1eaft \u0111\u1ea7u \u1edf d\u00f2ng ti\u1ebfp theo. C\u1ee5 th\u1ec3 nh\u01b0 sau:\u00a0<\/span><\/p>\n<pre>&lt;h2&gt;Chi\u1ebfn th\u1eafng \u0110i\u1ec7n Bi\u00ean&lt;\/h2&gt;\r\n\r\n&lt;p&gt;Gi\u1ea3i ph\u00f3ng \u0110i\u1ec7n Bi\u00ean B\u1ed9 \u0111\u1ed9i ta&lt;br&gt;\r\n\r\nti\u1ebfn qu\u00e2n tr\u1edf v\u1ec1 gi\u1eefa m\u00f9a n\u00e0y hoa n\u1edf&lt;br&gt;\r\n\r\nmi\u1ec1n T\u00e2y B\u1eafc t\u01b0ng b\u1eebng vui&lt;br&gt;\r\n\r\nb\u1ea3n m\u01b0\u1eddng x\u01b0a n\u01b0\u01a1ng l\u00faa m\u1edbi tr\u1ed3ng&lt;br&gt;\r\n\r\nK\u00eca \u0111\u00e0n em b\u00e9 gi\u1eefa \u0111\u1ed3ng n\u1eafm tay xo\u00e8 hoa&lt;\/p&gt;\r\n\r\n&lt;p&gt;D\u1ecdc \u0111\u01b0\u1eddng chi\u1ebfn th\u1eafng ta ti\u1ebfn v\u1ec1&lt;br&gt;\r\n\r\n\u0111o\u00e0n d\u00e2n c\u00f4ng ti\u1ec1n tuy\u1ebfn&lt;br&gt;\r\n\r\nv\u1eaby ch\u00e0o ph\u00e1o binh v\u01b0\u1ee3t qua.&lt;br&gt;\r\n\r\nS\u00fang \u0111\u1ea1i b\u00e1c qu\u1ea5n l\u00e1 ng\u1ee5y trang&lt;br&gt;\r\n\r\nt\u1eebng \u0111\u00e0n b\u01b0\u01a1m b\u01b0\u1edbm tr\u1eafng r\u1ee1n l\u00e1 ng\u1ee5y trang.&lt;\/p&gt;\r\n\r\n&lt;p&gt;Xi\u1ebft bao s\u01b0\u1edbng vui t\u1eeb ng\u00e0y l\u00ean T\u00e2y B\u1eafc&lt;br&gt;\r\n\r\n\u0110\u1ed3ng b\u00e0o nao n\u1ee9c mong \u0111\u00f3n ta tr\u1edf v\u1ec1&lt;br&gt;\r\n\r\nGi\u1edd chi\u1ebfn th\u1eafng ta \u0111\u00e3 v\u1ec1&lt;br&gt;\r\n\r\nVui m\u1eebng \u0111\u00f3n ch\u00fang ta ti\u1ebfn v\u1ec1&lt;br&gt;\r\n\r\nn\u00fai s\u00f4ng b\u1eebng l\u00ean \u0111\u1ea5t n\u01b0\u1edbc ta s\u00e1ng ng\u1eddi&lt;br&gt;\r\n\r\nc\u00e1nh \u0111\u1ed3ng \u0110i\u1ec7n Bi\u00ean c\u1edd&lt;br&gt;\r\n\r\nchi\u1ebfn th\u1eafng t\u01b0ng b\u1eebng tr\u00ean tr\u1eddi.&lt;\/p&gt;\r\n\r\n&lt;p&gt;&lt;em&gt;\u0110\u1ed7 Nhu\u1eadn&lt;\/em&gt;&lt;\/p&gt;<\/pre>\n<p>K\u1ebft qu\u1ea3 hi\u1ec3n th\u1ecb:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-68435\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2024\/05\/xuong-dong-trong-html-vippro.png\" alt=\"xu\u1ed1ng d\u00f2ng trong html - itviec blog\" width=\"640\" height=\"948\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2024\/05\/xuong-dong-trong-html-vippro.png 640w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2024\/05\/xuong-dong-trong-html-vippro-203x300.png 203w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2024\/05\/xuong-dong-trong-html-vippro-432x640.png 432w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2024\/05\/xuong-dong-trong-html-vippro-135x200.png 135w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2024\/05\/xuong-dong-trong-html-vippro-68x100.png 68w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2024\/05\/xuong-dong-trong-html-vippro-304x450.png 304w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/p>\n<h3><b>S\u1eed d\u1ee5ng Pseudo-Elements (Ph\u1ea7n t\u1eed gi\u1ea3)<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">B\u00ean c\u1ea1nh th\u1ebb &lt;br&gt; th\u00ec b\u1ea1n c\u00f3 th\u1ec3 xu\u1ed1ng d\u00f2ng trong HTML b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng pseudo-elements. Pseudo-elements hay c\u00f2n g\u1ecdi l\u00e0 ph\u1ea7n t\u1eed gi\u1ea3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ea1o ki\u1ec3u cho m\u1ed9t ph\u1ea7n c\u1ee5 th\u1ec3 c\u1ee7a ph\u1ea7n t\u1eed v\u00e0 ::after \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 t\u1ea1o xu\u1ed1ng d\u00f2ng cho m\u1ed9t ph\u1ea7n t\u1eed HTML.<\/span><\/p>\n<pre>&lt;!DOCTYPE html&gt;\r\n&lt;html lang=\"vn\"&gt;\r\n&lt;head&gt;\r\n\u00a0 &lt;meta charset=\"UTF-8\"&gt;\r\n\u00a0 &lt;meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"&gt;\r\n\u00a0 &lt;title&gt;CSS ::after With \\a&lt;\/title&gt;\r\n&lt;\/head&gt;\r\n&lt;style&gt;\r\n\u00a0 span {\r\n\u00a0 \u00a0 \u00a0 padding: 1px 8px;\r\n\u00a0 }\r\n\u00a0 span::after {\r\n\u00a0 \u00a0 \u00a0 content: '\\a';\r\n\u00a0 \u00a0 \u00a0 white-space: pre;\r\n\u00a0 }\r\n\u00a0 ::\r\n&lt;\/style&gt;\r\n&lt;body&gt;\r\n\u00a0 &lt;div&gt;\r\n\u00a0 \u00a0 \u00a0 &lt;span&gt;Chuy\u00ean m\u00f4n IT&lt;\/span&gt;\r\n\u00a0 \u00a0 \u00a0 &lt;span&gt;S\u1ef1 nghi\u1ec7p IT&lt;\/span&gt;\r\n\u00a0 \u00a0 \u00a0 &lt;span&gt;Vi\u1ec7c l\u00e0m IT&lt;\/span&gt;\r\n\u00a0 \u00a0 \u00a0 &lt;span&gt;Chuy\u1ec7n IT&lt;\/span&gt;\r\n\u00a0 &lt;\/div&gt;\r\n&lt;\/body&gt;\r\n&lt;\/html&gt;<\/pre>\n<p><span style=\"font-weight: 400;\">\u1ede \u0111o\u1ea1n m\u00e3 tr\u00ean, thu\u1ed9c t\u00ednh ::after \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u00ean m\u1ed7i ph\u1ea7n t\u1eed n\u1ed9i tuy\u1ebfn, bi\u1ec3u th\u1ecb b\u1eb1ng &lt;span&gt; \u0111\u1ec3 th\u00eam d\u1ea5u xu\u1ed1ng d\u00f2ng (\\a) sau d\u00f2ng v\u0103n b\u1ea3n. ::after trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y c\u00f3 content property (n\u1ed9i dung) v\u00e0 white space property (kho\u1ea3ng tr\u1eafng) \u0111\u1ec3 s\u1eed d\u1ee5ng.<\/span><\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">Content property m\u00f4 t\u1ea3 n\u1ed9i dung b\u1ea1n mu\u1ed1n \u0111\u01b0a v\u00e0o <\/span><a href=\"https:\/\/itviec.com\/blog\/chen-khoang-trang-html\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">kho\u1ea3ng tr\u1eafng<\/span><\/a>;<\/li>\n<li><span style=\"font-weight: 400;\">Trong khi white space ki\u1ec3m so\u00e1t c\u00e1ch x\u1eed l\u00fd kho\u1ea3ng tr\u1eafng trong n\u1ed9i dung khi \u0111\u01b0\u1ee3c d\u00f9ng v\u1edbi gi\u00e1 tr\u1ecb pre \u0111\u1ec3 gi\u1eef nguy\u00ean kho\u1ea3ng tr\u1eafng.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng ph\u1ea7n t\u1eed c\u1ea5p kh\u1ed1i nh\u01b0 &lt;p&gt; ho\u1eb7c &lt;div&gt; \u0111\u1ec3 t\u1ea1o ng\u1eaft d\u00f2ng trong v\u0103n b\u1ea3n, tuy nhi\u00ean \u0111\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p th\u00ec b\u1ea1n n\u00ean c\u00e2n nh\u1eafc s\u1eed d\u1ee5ng ph\u1ea7n t\u1eed kh\u00e1c (&lt;br&gt; ho\u1eb7c Pseudo-Elements) c\u00f3 ch\u1ee9c n\u0103ng ph\u00f9 h\u1ee3p. \u0110i\u1ec1u n\u00e0y s\u1ebd gi\u00fap c\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9 t\u1ea3i trang c\u0169ng nh\u01b0 n\u00e2ng cao t\u00ednh th\u1ea9m m\u1ef9 c\u1ee7a trang web hi\u1ec7u qu\u1ea3.<\/span><\/p>\n<blockquote><p><span style=\"font-weight: 400;\">Xem th\u00eam <\/span><a href=\"https:\/\/itviec.com\/it-jobs\/lap-trinh-vien-front-end\/ho-chi-minh-hcm?utm_campaign=daily&amp;utm_medium=anchor_text&amp;utm_source=blog_16082023&amp;job_selected=senior-front-end-developer-javascript-css-english-relia-software-2351\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Vi\u1ec7c l\u00e0m L\u1eadp tr\u00ecnh vi\u00ean Front-End<\/span><\/a><span style=\"font-weight: 400;\"> t\u1ea1i TP. H\u1ed3 Ch\u00ed Minh<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Xem th\u00eam <\/span><a href=\"https:\/\/itviec.com\/it-jobs\/lap-trinh-vien-front-end\/ha-noi?utm_campaign=daily&amp;utm_medium=anchor_text&amp;utm_source=blog_16082023&amp;job_selected=mid-frontend-dev-html5-css3-javascript-solis-lab-5124\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Vi\u1ec7c l\u00e0m L\u1eadp tr\u00ecnh vi\u00ean Front-End<\/span><\/a><span style=\"font-weight: 400;\"> t\u1ea1i H\u00e0 N\u1ed9i<\/span><\/p><\/blockquote>\n<h2><span class=\"ez-toc-section\" id=\"Cac_cau_hoi_ve_xuong_dong_trong_HTML_thuong_gap\"><\/span><b> C\u00e1c c\u00e2u h\u1ecfi v\u1ec1 xu\u1ed1ng d\u00f2ng trong HTML th\u01b0\u1eddng g\u1eb7p\u00a0<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><b>C\u00f3 n\u00ean s\u1eed d\u1ee5ng th\u1ebb &lt;br&gt; th\u01b0\u1eddng xuy\u00ean kh\u00f4ng?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Ph\u1ea7n t\u1eed &lt;br&gt; \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u00e8n ng\u1eaft d\u00f2ng ho\u1eb7c m\u1ed9t d\u00f2ng tr\u1ed1ng trong \u0111o\u1ea1n v\u0103n b\u1ea3n. M\u1eb7c d\u00f9 tr\u00f4ng c\u00f3 v\u1ebb thu\u1eadn ti\u1ec7n nh\u01b0ng b\u1ea1n kh\u00f4ng n\u00ean s\u1eed d\u1ee5ng th\u1ebb ng\u1eaft d\u00f2ng n\u00e0y th\u01b0\u1eddng xuy\u00ean, b\u1edfi v\u00ec th\u1ebb &lt;br&gt; kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng th\u00edch \u1ee9ng t\u1ed1t v\u1edbi k\u00edch th\u01b0\u1edbc m\u00e0n h\u00ecnh ho\u1eb7c c\u00e1c c\u1eeda s\u1ed5 tr\u00ecnh duy\u1ec7t kh\u00e1c nhau.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn b\u1ed1 c\u1ee5c trang web kh\u00f4ng r\u00f5 r\u00e0ng, g\u00e2y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh th\u1ea9m m\u1ef9 c\u0169ng nh\u01b0 kh\u1ea3 n\u0103ng truy c\u1eadp c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 kh\u00e1c \u0111\u1ec3 thay th\u1ebf nh\u01b0:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Margin v\u00e0 Padding:<\/b><span style=\"font-weight: 400;\"> S\u1eed d\u1ee5ng c\u00e1c thu\u1ed9c t\u00ednh c\u1ee7a CSS \u0111\u1ec3 t\u1ea1o xu\u1ed1ng d\u00f2ng s\u1ebd gi\u00fap \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n tr\u00ean c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c nhau.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>C\u00e1c ph\u1ea7n t\u1eed c\u1ea5p kh\u1ed1i (Block-level Elements):<\/b><span style=\"font-weight: 400;\"> S\u1eed d\u1ee5ng c\u00e1c th\u1ebb nh\u01b0 &lt;p&gt;, &lt;div&gt; ho\u1eb7c &lt;section&gt; \u0111\u1ec3 ph\u00e2n t\u00e1ch c\u00e1c ph\u1ea7n n\u1ed9i dung kh\u00e1c nhau, t\u1ea1o ra kh\u00f4ng gian v\u00e0 c\u1ea5u tr\u00fac theo chi\u1ec1u d\u1ecdc gi\u00fap c\u1ea3i thi\u1ec7n b\u1ed1 c\u1ee5c trang web hi\u1ec7u qu\u1ea3.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/itviec.com\/blog\/css-la-gi\/\" target=\"_blank\" rel=\"noopener\"><b>CSS<\/b><\/a><b> Flexbox v\u00e0 Grid:<\/b><span style=\"font-weight: 400;\"> Nh\u1eefng c\u00f4ng c\u1ee5 linh ho\u1ea1t v\u00e0 d\u1ec5 d\u00e0ng ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c kho\u1ea3ng c\u00e1ch c\u0169ng nh\u01b0 v\u1ecb tr\u00ed c\u1ee7a c\u00e1c ph\u1ea7n t\u1eed.<\/span><\/li>\n<\/ul>\n<h3><b>T\u1ea1i sao th\u1ebb &lt;br&gt; kh\u00f4ng hi\u1ec3n th\u1ecb t\u1ed1t tr\u00ean trang web?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">N\u1ebfu ph\u1ea7n t\u1eed ng\u1eaft d\u00f2ng HTML kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng th\u00ec c\u00f3 th\u1ec3 b\u1ea1n \u0111ang s\u1eed d\u1ee5ng th\u00e0nh ph\u1ea7n n\u00e0y kh\u00f4ng ch\u00ednh x\u00e1c. B\u1ea1n ch\u1ec9 n\u00ean s\u1eed d\u1ee5ng th\u1ebb &lt;br&gt; trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p nh\u01b0 \u0111\u1ecba ch\u1ec9, vi\u1ebft th\u01a1 ho\u1eb7c l\u1eddi b\u00e0i h\u00e1t, tr\u00e1nh l\u1ea1m d\u1ee5ng th\u1ebb &lt;br&gt; qu\u00e1 nhi\u1ec1u trong \u0111o\u1ea1n m\u00e3 HTML.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Th\u1ebb &lt;br&gt; kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng th\u00edch \u1ee9ng t\u1ed1t tr\u00ean m\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb, trang web s\u1ebd t\u1ef1 \u0111\u1ed9ng thay \u0111\u1ed5i b\u1ed1 c\u1ee5c ph\u00f9 h\u1ee3p v\u1edbi k\u00edch th\u01b0\u1edbc m\u00e0n h\u00ecnh. Ch\u00ednh v\u00ec v\u1eady, n\u00f3 s\u1ebd ng\u1eaft d\u00f2ng v\u0103n b\u1ea3n khi c\u1ea7n thi\u1ebft g\u00e2y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn b\u1ed1 c\u1ee5c v\u00e0 t\u00ednh th\u1ea9m m\u1ef9 c\u1ee7a trang web. Do \u0111\u00f3, b\u1ea1n n\u00ean c\u00e2n nh\u1eafc v\u00e0 s\u1eed d\u1ee5ng th\u1ebb &lt;br&gt; v\u00e0o nh\u1eefng tr\u01b0\u1eddng h\u1ee3p h\u1ee3p l\u00fd.\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Tong_ket_ve_xuong_dong_trong_HTML\"><\/span><b>T\u1ed5ng k\u1ebft v\u1ec1 xu\u1ed1ng d\u00f2ng trong HTML\u00a0<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">B\u00e0i vi\u1ebft tr\u00ean \u0111\u00e3 gi\u1ea3i \u0111\u00e1p v\u00e0 h\u01b0\u1edbng d\u1eabn v\u1ec1 c\u00e1ch t\u1ea1o <\/span><b>xu\u1ed1ng d\u00f2ng trong HTML<\/b><span style=\"font-weight: 400;\"> \u0111\u01a1n gi\u1ea3n v\u00e0 nhanh ch\u00f3ng. Hy v\u1ecdng qua b\u00e0i vi\u1ebft, b\u1ea1n c\u00f3 th\u1ec3 t\u00edch l\u0169y th\u00eam m\u1ed9t s\u1ed1 tips h\u1ecdc HTML c\u01a1 b\u1ea3n \u0111\u1ec3 trau d\u1ed3i th\u00eam kinh nghi\u1ec7m cho b\u1ea3n th\u00e2n. \u0110\u1ed1i v\u1edbi th\u1ecb tr\u01b0\u1eddng tuy\u1ec3n d\u1ee5ng c\u1ea1nh tranh hi\u1ec7n nay, n\u1eafm v\u1eefng v\u1ec1 HTML s\u1ebd gi\u00fap b\u1ea1n th\u00eam ph\u1ea7n t\u1ef1 tin tr\u00ean con \u0111\u01b0\u1eddng th\u0103ng ti\u1ebfn trong c\u00f4ng vi\u1ec7c.<\/span><\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" class=\"sp-no-webp wp-image-5668 aligncenter sp-no-webp entered lazyloaded\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2.png\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2.png 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2-200x200.png 200w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2-60x60.png 60w\" alt=\"robby-2\" width=\"300\" height=\"300\" data-lazy-src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2.png\" data-lazy-sizes=\"(max-width: 300px) 100vw, 300px\" data-lazy-srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2.png 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2-200x200.png 200w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2015\/07\/Robby2-60x60.png 60w\" data-ll-status=\"loaded\" \/><\/figure>\n<\/div>\n<p id=\"block-bdf220a1-3635-4794-9101-81d879939b92\" class=\"has-text-align-center\" style=\"text-align: center;\"><strong>B\u1ea1n th\u1ea5y b\u00e0i vi\u1ebft hay v\u00e0 h\u1eefu \u00edch? \u0110\u1eebng ng\u1ea1i Share v\u1edbi b\u1ea1n b\u00e8 v\u00e0 \u0111\u1ed3ng nghi\u1ec7p nh\u00e9.<\/strong><\/p>\n<p id=\"block-a1315aab-406f-48df-97fc-6b9584e6e134\" class=\"has-text-align-center\" style=\"text-align: center;\"><strong>V\u00e0 nhanh tay tham kh\u1ea3o\u00a0<a href=\"http:\/\/itviec.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">vi\u1ec7c l\u00e0m IT<\/a>\u00a0\u201cch\u1ea5t\u201d tr\u00ean ITviec<\/strong>!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Trong HTML, m\u1ed9t \u0111o\u1ea1n v\u0103n lu\u00f4n b\u1eaft \u0111\u1ea7u tr\u00ean m\u1ed9t d\u00f2ng m\u1edbi, th\u1ebf nh\u01b0ng \u0111\u1ec3 t\u1ea1o \u0111\u01b0\u1ee3c d\u00f2ng m\u1edbi cho v\u0103n b\u1ea3n trong m\u1ed9t \u0111o\u1ea1n v\u0103n th\u00ec b\u1ea1n s\u1ebd c\u1ea7n t\u1ea1o ng\u1eaft d\u00f2ng trong HTML. V\u1eady l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 xu\u1ed1ng d\u00f2ng trong HTML? \u0110\u1ecdc b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u00ecm hi\u1ec3u r\u00f5 h\u01a1n [&hellip;]<\/p>\n","protected":false},"author":207,"featured_media":68482,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_gspb_post_css":"","footnotes":""},"categories":[109],"tags":[],"class_list":["post-68408","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-chuyen-mon-it"],"blocksy_meta":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.8 (Yoast SEO v27.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Xu\u1ed1ng d\u00f2ng trong HTML nh\u01b0 th\u1ebf n\u00e0o \u0111\u01a1n gi\u1ea3n m\u00e0 hi\u1ec7u qu\u1ea3? - ITviec Blog<\/title>\n<meta name=\"description\" content=\"Xu\u1ed1ng d\u00f2ng trong HTML kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 b\u1ea1n ch\u1ec9 c\u1ea7n xu\u1ed1ng d\u00f2ng khi vi\u1ebft code, m\u00e0 s\u1ebd c\u1ea7n hi\u1ec3u v\u1ec1 c\u00e1c l\u1ec7nh xu\u1ed1ng d\u00f2ng trong HTML.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/itviec.com\/blog\/xuong-dong-trong-html\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"H\u01b0\u1edbng d\u1eabn c\u00e1ch xu\u1ed1ng d\u00f2ng trong HTML \u0111\u01a1n gi\u1ea3n v\u00e0 nhanh ch\u00f3ng\" \/>\n<meta property=\"og:description\" content=\"Trong HTML, m\u1ed9t \u0111o\u1ea1n v\u0103n lu\u00f4n b\u1eaft \u0111\u1ea7u tr\u00ean m\u1ed9t d\u00f2ng m\u1edbi, th\u1ebf nh\u01b0ng \u0111\u1ec3 t\u1ea1o \u0111\u01b0\u1ee3c d\u00f2ng m\u1edbi cho v\u0103n b\u1ea3n trong m\u1ed9t \u0111o\u1ea1n v\u0103n th\u00ec b\u1ea1n s\u1ebd c\u1ea7n t\u1ea1o ng\u1eaft d\u00f2ng trong\" \/>\n<meta property=\"og:url\" content=\"https:\/\/itviec.com\/blog\/xuong-dong-trong-html\/\" \/>\n<meta property=\"og:site_name\" content=\"ITviec Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/ITviec\" \/>\n<meta property=\"article:published_time\" content=\"2024-05-09T11:16:06+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2024\/05\/xuong-dong-trong-html-blog-thumbnail-vippro.png\" \/>\n\t<meta property=\"og:image:width\" content=\"3959\" \/>\n\t<meta property=\"og:image:height\" content=\"2084\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Uyen Ngo\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@ITviec\" \/>\n<meta name=\"twitter:site\" content=\"@ITviec\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"Uyen Ngo\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 ph\u00fat\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Xu\u1ed1ng d\u00f2ng trong HTML nh\u01b0 th\u1ebf n\u00e0o \u0111\u01a1n gi\u1ea3n m\u00e0 hi\u1ec7u qu\u1ea3? 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