{"id":89657,"date":"2025-07-31T23:49:10","date_gmt":"2025-07-31T16:49:10","guid":{"rendered":"https:\/\/itviec.com\/blog\/?p=89657"},"modified":"2025-08-01T00:15:04","modified_gmt":"2025-07-31T17:15:04","slug":"navbar-bootstrap-la-g","status":"publish","type":"post","link":"https:\/\/itviec.com\/blog\/navbar-bootstrap-la-g\/","title":{"rendered":"Navbar Bootstrap: H\u01b0\u1edbng d\u1eabn t\u1ea1o Header chuy\u00ean nghi\u1ec7p cho web"},"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\/navbar-bootstrap-la-g\/#Gioi_thieu_ve_Navbar_Bootstrap\" >Gi\u1edbi thi\u1ec7u v\u1ec1 Navbar Bootstrap<\/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\/navbar-bootstrap-la-g\/#Cac_nhom_thanh_phan_va_Class_chinh_trong_Navbar_Bootstrap\" >C\u00e1c nh\u00f3m th\u00e0nh ph\u1ea7n v\u00e0 Class ch\u00ednh trong Navbar Bootstrap<\/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\/navbar-bootstrap-la-g\/#Bai_tap_luyen_tap_su_dung_Navbar_Bootstrap\" >B\u00e0i t\u1eadp luy\u1ec7n t\u1eadp s\u1eed d\u1ee5ng Navbar Bootstrap<\/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\/navbar-bootstrap-la-g\/#Mot_so_luu_y_khi_su_dung_Navbar_trong_Bootstrap\" >M\u1ed9t s\u1ed1 l\u01b0u \u00fd khi s\u1eed d\u1ee5ng Navbar trong Bootstrap<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/itviec.com\/blog\/navbar-bootstrap-la-g\/#Cac_cau_hoi_thuong_gap_ve_Navbar_bootstrap\" >C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 Navbar bootstrap<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/itviec.com\/blog\/navbar-bootstrap-la-g\/#Tong_Ket\" >T\u1ed5ng K\u1ebft<\/a><\/li><\/ul><\/nav><\/div>\n\n<p><strong><em>Trong giao di\u1ec7n web, ph\u1ea7n header kh\u00f4ng ch\u1ec9 l\u00e0 v\u1ecb tr\u00ed \u0111\u1eb7t logo, m\u00e0 c\u00f2n \u0111\u00f3ng vai tr\u00f2 \u0111i\u1ec1u h\u01b0\u1edbng quan tr\u1ecdng, th\u01b0\u1eddng ch\u1ee9a menu, \u00f4 t\u00ecm ki\u1ebfm ho\u1eb7c th\u00f4ng tin ng\u01b0\u1eddi d\u00f9ng. Bootstrap cung c\u1ea5p component navbar gi\u00fap vi\u1ec7c x\u00e2y d\u1ef1ng m\u1ed9t header chuy\u00ean nghi\u1ec7p tr\u1edf n\u00ean \u0111\u01a1n gi\u1ea3n.&nbsp;<\/em><\/strong><\/p>\n\n\n\n<p>\u0110\u1ecdc b\u00e0i vi\u1ebft n\u00e0y \u0111\u1ec3 hi\u1ec3u ngay:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Navbar trong Bootstrap l\u00e0 g\u00ec?<\/li>\n\n\n\n<li>C\u00e1c c\u1ea5u tr\u00fac c\u01a1 b\u1ea3n v\u00e0 c\u00e1ch t\u00f9y ch\u1ec9nh Navbar<\/li>\n\n\n\n<li>L\u01b0u \u00fd quan tr\u1ecdng khi s\u1eed d\u1ee5ng Navbar<\/li>\n\n\n\n<li>C\u00e1ch \u00e1p d\u1ee5ng Navbar trong th\u1ef1c t\u1ebf th\u00f4ng qua c\u00e1c b\u00e0i t\u1eadp<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-gi\u1edbi-thi\u1ec7u-v\u1ec1-navbar-bootstrap\"><span class=\"ez-toc-section\" id=\"Gioi_thieu_ve_Navbar_Bootstrap\"><\/span><strong>Gi\u1edbi thi\u1ec7u v\u1ec1 Navbar Bootstrap<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-khai-ni\u1ec7m-header-va-navbar-trong-bootstrap\"><strong>Kh\u00e1i ni\u1ec7m header v\u00e0 navbar trong Bootstrap<\/strong><\/h3>\n\n\n\n<p>Trong thi\u1ebft k\u1ebf giao di\u1ec7n web, <strong>header<\/strong> l\u00e0 khu v\u1ef1c n\u1eb1m tr\u00ean c\u00f9ng c\u1ee7a trang, th\u01b0\u1eddng hi\u1ec3n th\u1ecb logo, ti\u00eau \u0111\u1ec1 website, menu \u0111i\u1ec1u h\u01b0\u1edbng ho\u1eb7c c\u00e1c ti\u1ec7n \u00edch nh\u01b0 t\u00ecm ki\u1ebfm, \u0111\u0103ng nh\u1eadp. \u0110\u00e2y l\u00e0 ph\u1ea7n \u0111\u1ea7u ti\u00ean ng\u01b0\u1eddi d\u00f9ng nh\u00ecn th\u1ea5y, do \u0111\u00f3 n\u00f3 c\u1ea7n \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y r\u00f5 r\u00e0ng, d\u1ec5 truy c\u1eadp v\u00e0 th\u00e2n thi\u1ec7n tr\u00ean m\u1ecdi thi\u1ebft b\u1ecb.<\/p>\n\n\n\n<p>Trong <a href=\"https:\/\/itviec.com\/blog\/bootstrap-la-gi\/\" target=\"_blank\" rel=\"noreferrer noopener\">Bootstrap<\/a>, component \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn \u0111\u1ec3 x\u00e2y d\u1ef1ng ph\u1ea7n header ch\u00ednh l\u00e0 <strong>Navbar<\/strong>. Navbar l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n m\u1ea1nh m\u1ebd gi\u00fap t\u1ea1o thanh \u0111i\u1ec1u h\u01b0\u1edbng c\u00f3 kh\u1ea3 n\u0103ng responsive, d\u1ec5 t\u00edch h\u1ee3p c\u00e1c menu, logo, bi\u1ec3u t\u01b0\u1ee3ng v\u00e0 t\u01b0\u01a1ng th\u00edch t\u1ed1t v\u1edbi nhi\u1ec1u lo\u1ea1i layout.<\/p>\n\n\n\n<p>H\u00ecnh \u1ea3nh v\u1ec1 1 Navbar c\u01a1 b\u1ea3n:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"562\" height=\"128\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-64.png\" alt=\"\" class=\"wp-image-89658\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-64.png 562w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-64-300x68.png 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-64-200x46.png 200w\" sizes=\"auto, (max-width: 562px) 100vw, 562px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-t\u1ea1i-sao-nen-dung-navbar-co-s\u1eb5n-c\u1ee7a-bootstrap\"><strong>T\u1ea1i sao n\u00ean d\u00f9ng Navbar c\u00f3 s\u1eb5n c\u1ee7a Bootstrap?<\/strong><\/h3>\n\n\n\n<p>Khi x\u00e2y d\u1ef1ng thanh \u0111i\u1ec1u h\u01b0\u1edbng (navbar) cho website, b\u1ea1n c\u00f3 hai l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn: t\u1ef1 vi\u1ebft HTML + CSS t\u1eeb \u0111\u1ea7u, ho\u1eb7c s\u1eed d\u1ee5ng component navbar c\u00f3 s\u1eb5n. V\u1edbi h\u1ea7u h\u1ebft c\u00e1c d\u1ef1 \u00e1n hi\u1ec7n nay, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi c\u1ea7n responsive v\u00e0 giao di\u1ec7n nh\u1ea5t qu\u00e1n th\u00ec vi\u1ec7c d\u00f9ng navbar Bootstrap l\u00e0 gi\u1ea3i ph\u00e1p hi\u1ec7u qu\u1ea3 h\u01a1n. H\u00e3y c\u00f9ng so s\u00e1nh hai ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u1ec3 hi\u1ec3u r\u00f5 l\u00ed do:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Ti\u00eau ch\u00ed<\/strong><\/td><td><strong>T\u1ef1 vi\u1ebft HTML &#8211; CSS<\/strong><\/td><td><strong>Navbar Bootstrap<\/strong><\/td><\/tr><tr><td><strong>Th\u1eddi gian ph\u00e1t tri\u1ec3n<\/strong><\/td><td>T\u1ed1n nhi\u1ec1u th\u1eddi gian, ph\u1ea3i vi\u1ebft to\u00e0n b\u1ed9 layout v\u00e0 style<\/td><td>Nhanh ch\u00f3ng, ch\u1ec9 c\u1ea7n v\u00e0i d\u00f2ng class<\/td><\/tr><tr><td><strong>Responsive<\/strong><\/td><td>Ph\u1ea3i t\u1ef1 vi\u1ebft media queries v\u00e0 x\u1eed l\u00fd JS toggle<\/td><td>C\u00f3 s\u1eb5n t\u00ednh n\u0103ng responsive v\u00e0 toggler<\/td><\/tr><tr><td><strong>T\u00f9y ch\u1ec9nh m\u00e0u s\u1eafc, b\u1ed1 c\u1ee5c<\/strong><\/td><td>C\u1ea7n vi\u1ebft th\u00eam CSS<\/td><td>C\u00f3 s\u1eb5n class nh\u01b0 bg-*, navbar-light\/dark<\/td><\/tr><tr><td><strong>T\u00edch h\u1ee3p dropdown, form, icon<\/strong><\/td><td>Ph\u1ea3i x\u1eed l\u00fd th\u1ee7 c\u00f4ng t\u1eebng ph\u1ea7n<\/td><td>D\u1ec5 d\u00e0ng m\u1edf r\u1ed9ng b\u1eb1ng c\u1ea5u tr\u00fac v\u00e0 class c\u00f3 s\u1eb5n<\/td><\/tr><tr><td><strong>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng<\/strong><\/td><td>Ph\u1ee9c t\u1ea1p n\u1ebfu th\u00eam nhi\u1ec1u th\u00e0nh ph\u1ea7n ph\u1ee5<\/td><td>D\u1ec5 t\u00edch h\u1ee3p logo, search box, user menu, v.v.<\/td><\/tr><tr><td><strong>T\u01b0\u01a1ng th\u00edch tr\u00ecnh duy\u1ec7t<\/strong><\/td><td>D\u1ec5 g\u1eb7p l\u1ed7i n\u1ebfu kh\u00f4ng test k\u1ef9<\/td><td>\u0110\u00e3 \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u s\u1eb5n b\u1edfi Bootstrap<\/td><\/tr><tr><td><strong>M\u1ee9c \u0111\u1ed9 ki\u1ec3m so\u00e1t chi ti\u1ebft<\/strong><\/td><td>To\u00e0n quy\u1ec1n t\u1ef1 thi\u1ebft k\u1ebf<\/td><td>Gi\u1edbi h\u1ea1n trong ph\u1ea1m vi class Bootstrap, nh\u01b0ng c\u00f3 th\u1ec3 ghi \u0111\u00e8<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-cac-nhom-thanh-ph\u1ea7n-va-class-chinh-trong-navbar-bootstrap\"><span class=\"ez-toc-section\" id=\"Cac_nhom_thanh_phan_va_Class_chinh_trong_Navbar_Bootstrap\"><\/span><strong>C\u00e1c nh\u00f3m th\u00e0nh ph\u1ea7n v\u00e0 Class ch\u00ednh trong Navbar Bootstrap<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Bootstrap chia component navbar th\u00e0nh nhi\u1ec1u ph\u1ea7n nh\u1ecf, m\u1ed7i ph\u1ea7n \u0111\u1ea3m nh\u1eadn m\u1ed9t vai tr\u00f2 ri\u00eang bi\u1ec7t v\u00e0 c\u00f3 h\u1ec7 th\u1ed1ng class c\u1ee5 th\u1ec3 \u0111\u1ec3 tu\u1ef3 ch\u1ec9nh. Vi\u1ec7c hi\u1ec3u r\u00f5 t\u1eebng ph\u1ea7n s\u1ebd gi\u00fap b\u1ea1n ki\u1ec3m so\u00e1t t\u1ed1t h\u01a1n khi x\u00e2y d\u1ef1ng ho\u1eb7c tu\u1ef3 bi\u1ebfn navbar theo nhu c\u1ea7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-c\u1ea5u-truc-c\u01a1-b\u1ea3n-c\u1ee7a-navbar\"><strong>C\u1ea5u tr\u00fac c\u01a1 b\u1ea3n c\u1ee7a Navbar<\/strong><\/h3>\n\n\n\n<p>M\u1ed9t thanh \u0111i\u1ec1u h\u01b0\u1edbng Bootstrap ti\u00eau chu\u1ea9n g\u1ed3m c\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>navbar<\/strong>: class g\u1ed1c \u0111\u1ecbnh ngh\u0129a thanh navbar<\/li>\n\n\n\n<li><strong>container<\/strong> ho\u1eb7c <strong>container-fluid<\/strong>: d\u00f9ng \u0111\u1ec3 bao b\u1ecdc n\u1ed9i dung navbar v\u00e0 c\u0103n gi\u1eefa<\/li>\n\n\n\n<li><strong>navbar-brand<\/strong>: n\u01a1i hi\u1ec3n th\u1ecb logo ho\u1eb7c t\u00ean trang web<\/li>\n\n\n\n<li><strong>navbar-nav<\/strong>: ch\u1ee9a danh s\u00e1ch c\u00e1c li\u00ean k\u1ebft \u0111i\u1ec1u h\u01b0\u1edbng<\/li>\n\n\n\n<li><strong>navbar-toggler:<\/strong> n\u00fat thu g\u1ecdn menu cho thi\u1ebft b\u1ecb nh\u1ecf<\/li>\n\n\n\n<li><strong>navbar-collapse<\/strong>: ph\u1ea7n menu s\u1ebd \u1ea9n\/hi\u1ec7n khi nh\u1ea5n n\u00fat toggle<\/li>\n<\/ul>\n\n\n\n<p>V\u00ed d\u1ee5:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code> &lt;nav class=\"navbar navbar-expand-lg navbar-light bg-light\"&gt;\n       &lt;div class=\"container-fluid\"&gt;\n  &lt;!-- Logo ho\u1eb7c t\u00ean th\u01b0\u01a1ng hi\u1ec7u --&gt;\n         &lt;a class=\"navbar-brand\" href=\"#\"&gt;MyWebsite&lt;\/a&gt;\n         \n         &lt;!-- N\u00fat toggle hi\u1ec3n th\u1ecb menu tr\u00ean thi\u1ebft b\u1ecb nh\u1ecf --&gt;\n         &lt;button class=\"navbar-toggler\" type=\"button\" data-bs-toggle=\"collapse\" data-bs-target=\"#navbarNav\"&gt;\n           &lt;span class=\"navbar-toggler-icon\"&gt;&lt;\/span&gt;\n         &lt;\/button&gt;\n\n\n         &lt;!-- Ph\u1ea7n menu c\u00f3 th\u1ec3 \u1ea9n\/hi\u1ec7n khi thu g\u1ecdn --&gt;\n         &lt;div class=\"collapse navbar-collapse\" id=\"navbarNav\"&gt;\n           &lt;!-- Danh s\u00e1ch li\u00ean k\u1ebft \u0111i\u1ec1u h\u01b0\u1edbng ch\u00ednh --&gt;\n           &lt;ul class=\"navbar-nav me-auto mb-2 mb-lg-0\"&gt;\n             &lt;li class=\"nav-item\"&gt;\n               &lt;a class=\"nav-link active\" aria-current=\"page\" href=\"#\"&gt;Trang ch\u1ee7&lt;\/a&gt;\n             &lt;\/li&gt;\n             &lt;li class=\"nav-item\"&gt;\n               &lt;a class=\"nav-link\" href=\"#\"&gt;D\u1ecbch v\u1ee5&lt;\/a&gt;\n             &lt;\/li&gt;\n             &lt;li class=\"nav-item\"&gt;\n               &lt;a class=\"nav-link\" href=\"#\"&gt;Gi\u1edbi thi\u1ec7u&lt;\/a&gt;\n             &lt;\/li&gt;\n             &lt;li class=\"nav-item\"&gt;\n               &lt;a class=\"nav-link\" href=\"#\"&gt;Li\u00ean h\u1ec7&lt;\/a&gt;\n             &lt;\/li&gt;\n           &lt;\/ul&gt;\n\n\n           &lt;!-- Thanh t\u00ecm ki\u1ebfm b\u00ean ph\u1ea3i navbar --&gt;\n           &lt;form class=\"d-flex\"&gt;\n             &lt;input class=\"form-control me-2\" type=\"search\" placeholder=\"T\u00ecm ki\u1ebfm\"&gt;\n             &lt;button class=\"btn btn-outline-success\" type=\"submit\"&gt;T\u00ecm&lt;\/button&gt;\n           &lt;\/form&gt;\n         &lt;\/div&gt;\n       &lt;\/div&gt;\n     &lt;\/nav&gt;<\/code><\/pre>\n\n\n\n<p>H\u00ecnh \u1ea3nh k\u1ebft qu\u1ea3:<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"92\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-65-640x92.png\" alt=\"\" class=\"wp-image-89660\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-65-640x92.png 640w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-65-300x43.png 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-65-200x29.png 200w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-65-768x111.png 768w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-65.png 800w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-cach-tuy-ch\u1ec9nh-mau-s\u1eafc-va-n\u1ec1n-c\u1ee7a-navbar\"><strong>C\u00e1ch t\u00f9y ch\u1ec9nh m\u00e0u s\u1eafc v\u00e0 n\u1ec1n c\u1ee7a Navbar<\/strong><\/h3>\n\n\n\n<p>Navbar trong Bootstrap c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng t\u00f9y ch\u1ec9nh m\u00e0u s\u1eafc v\u00e0 n\u1ec1n th\u00f4ng qua:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u00e1c class ti\u1ec7n \u00edch nh\u01b0 <strong>bg-primary<\/strong>, <strong>bg-dark<\/strong>, <strong>bg-light<\/strong>, v.v.<\/li>\n\n\n\n<li>Thu\u1ed9c t\u00ednh <strong>data-bs-theme=\u201cdark\u201d<\/strong> \u0111\u1ec3 \u00e1p d\u1ee5ng giao di\u1ec7n t\u1ed1i (k\u1ec3 t\u1eeb Bootstrap 5.3).<\/li>\n\n\n\n<li>C\u00f3 th\u1ec3 d\u00f9ng m\u00e0u n\u1ec1n t\u00f9y ch\u1ec9nh qua <strong>style=\u201cbackground-color: #hex\u201d<\/strong><\/li>\n<\/ul>\n\n\n\n<p>V\u00ed d\u1ee5 v\u1ec1 t\u00f9y ch\u1ec9nh m\u00e0u s\u1eafc trong Navbar:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-t\u1ea1o-navbar-n\u1ec1n-t\u1ed1i\"><strong>T\u1ea1o Navbar n\u1ec1n t\u1ed1i<\/strong><\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;!-- Navbar n\u1ec1n t\u1ed1i, ch\u1ee7 \u0111\u1ec1 dark --&gt;\n&lt;nav class=\"navbar navbar-expand-lg bg-dark border-bottom border-body\" data-bs-theme=\"dark\"&gt;\n &lt;div class=\"container-fluid\"&gt;\n   &lt;a class=\"navbar-brand\" href=\"#\"&gt;MyCompany&lt;\/a&gt;\n   &lt;div class=\"collapse navbar-collapse\" id=\"navbarDark\"&gt;\n     &lt;ul class=\"navbar-nav me-auto mb-2 mb-lg-0\"&gt;\n       &lt;li class=\"nav-item\"&gt;\n         &lt;a class=\"nav-link active\" aria-current=\"page\" href=\"#\"&gt;Trang ch\u1ee7&lt;\/a&gt;\n       &lt;\/li&gt;\n       &lt;li class=\"nav-item\"&gt;\n         &lt;a class=\"nav-link\" href=\"#\"&gt;S\u1ea3n ph\u1ea9m&lt;\/a&gt;\n       &lt;\/li&gt;\n     &lt;\/ul&gt;\n     &lt;form class=\"d-flex\" role=\"search\"&gt;\n       &lt;input class=\"form-control me-2\" type=\"search\" placeholder=\"T\u00ecm ki\u1ebfm...\" aria-label=\"Search\"&gt;\n       &lt;button class=\"btn btn-outline-light\" type=\"submit\"&gt;T\u00ecm&lt;\/button&gt;\n     &lt;\/form&gt;\n   &lt;\/div&gt;\n &lt;\/div&gt;\n&lt;\/nav&gt;<\/code><\/pre>\n\n\n\n<p>Trong \u0111\u00f3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>S\u1eed d\u1ee5ng class <strong>.bg-dark <\/strong>\u0111\u1ec3 thi\u1ebft l\u1eadp m\u00e0u n\u1ec1n (background color) c\u1ee7a ph\u1ea7n t\u1eed th\u00e0nh m\u00e0u t\u1ed1i<\/li>\n\n\n\n<li>Thi\u1ebft l\u1eadp ch\u1ee7 \u0111\u1ec1 t\u1ed1i b\u1eb1ng thu\u1ed9c t\u00ednh <strong>data-bs-theme=\u201cdark\u201d, <\/strong>Bootstrap s\u1ebd s\u1eed d\u1ee5ng bi\u1ebfn CSS (CSS variables) t\u01b0\u01a1ng \u1ee9ng \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh m\u00e0u s\u1eafc v\u0103n b\u1ea3n, bi\u1ec3u t\u01b0\u1ee3ng, n\u00fat v\u00e0 form-control sao cho ph\u00f9 h\u1ee3p v\u1edbi n\u1ec1n t\u1ed1i.<\/li>\n<\/ul>\n\n\n\n<p>K\u1ebft qu\u1ea3 hi\u1ec3n th\u1ecb<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"117\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-66-640x117.png\" alt=\"\" class=\"wp-image-89661\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-66-640x117.png 640w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-66-300x55.png 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-66-200x37.png 200w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-66-768x140.png 768w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-66.png 800w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-t\u1ea1o-navbar-v\u1edbi-mau-n\u1ec1n-tu\u1ef3-ch\u1ec9nh\"><strong>T\u1ea1o Navbar v\u1edbi m\u00e0u n\u1ec1n tu\u1ef3 ch\u1ec9nh<\/strong><\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>&nbsp;&nbsp;  &lt;nav class=\"navbar navbar-expand-lg\" style=\"background-color: #e3f2fd;\" data-bs-theme=\"light\"&gt;\n       &lt;div class=\"container-fluid\"&gt;\n         &lt;a class=\"navbar-brand\" href=\"#\"&gt;\n           C\u00f4ng ty ABC\n         &lt;\/a&gt;\n         &lt;button class=\"navbar-toggler\" type=\"button\" data-bs-toggle=\"collapse\" data-bs-target=\"#navbarCustom\" aria-controls=\"navbarCustom\" aria-expanded=\"false\" aria-label=\"Toggle navigation\"&gt;\n           &lt;span class=\"navbar-toggler-icon\"&gt;&lt;\/span&gt;\n         &lt;\/button&gt;\n         &lt;div class=\"collapse navbar-collapse\" id=\"navbarCustom\"&gt;\n           &lt;ul class=\"navbar-nav me-auto mb-2 mb-lg-0\"&gt;\n             &lt;li class=\"nav-item\"&gt;&lt;a class=\"nav-link active\" href=\"#\"&gt;Trang ch\u1ee7&lt;\/a&gt;&lt;\/li&gt;\n             &lt;li class=\"nav-item\"&gt;&lt;a class=\"nav-link\" href=\"#\"&gt;Gi\u1edbi thi\u1ec7u&lt;\/a&gt;&lt;\/li&gt;\n             &lt;li class=\"nav-item\"&gt;&lt;a class=\"nav-link\" href=\"#\"&gt;Tin t\u1ee9c&lt;\/a&gt;&lt;\/li&gt;\n           &lt;\/ul&gt;\n           &lt;form class=\"d-flex\"&gt;\n             &lt;input class=\"form-control me-2\" type=\"search\" placeholder=\"T\u00ecm ki\u1ebfm...\" aria-label=\"Search\"&gt;\n             &lt;button class=\"btn btn-outline-primary\" type=\"submit\"&gt;T\u00ecm&lt;\/button&gt;\n           &lt;\/form&gt;\n         &lt;\/div&gt;\n       &lt;\/div&gt;\n     &lt;\/nav&gt;<\/code><\/pre>\n\n\n\n<p>Trong \u0111\u00f3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>S\u1eed d\u1ee5ng thu\u1ed9c t\u00ednh <strong>style=\u201cbackground-color: #e3f2fd;\u201d <\/strong>\u0111\u1ec3 g\u00e1n m\u00e0u n\u1ec1n t\u00f9y ch\u1ec9nh (m\u00e0u xanh nh\u1ea1t) cho ph\u1ea7n t\u1eed navbar.<\/li>\n\n\n\n<li>Thi\u1ebft l\u1eadp ch\u1ee7 \u0111\u1ec1 s\u00e1ng b\u1eb1ng thu\u1ed9c t\u00ednh <strong>data-bs-theme=\u201clight\u201d<\/strong>, Bootstrap s\u1ebd s\u1eed d\u1ee5ng bi\u1ebfn CSS (CSS variables) t\u01b0\u01a1ng \u1ee9ng \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh c\u00e1c ph\u1ea7n t\u1eed sao cho ph\u00f9 h\u1ee3p v\u1edbi n\u1ec1n s\u00e1ng, \u0111\u1ea3m b\u1ea3o n\u1ed9i dung lu\u00f4n c\u00f3 \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n t\u1ed1t v\u00e0 d\u1ec5 \u0111\u1ecdc.<\/li>\n<\/ul>\n\n\n\n<p>K\u1ebft qu\u1ea3 hi\u1ec3n th\u1ecb:<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXc3CqAmlWKmy4Xrh7L_ikiywreZWBjQ_gF3poU2Z2pWtWL-r2_88KWdY9k-xn1ZLHoSXLop_n3EsADIsemuZCoz60pjoqDQn8uiqklTaaq9VCyShM7bLYwmYnS77ECTOpnsdOGRBQ?key=hcvR-vWgODhGcV9y9ApeMA\" alt=\"\"\/><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><em>\u0110\u1ecdc chi ti\u1ebft: <strong><a href=\"https:\/\/itviec.com\/blog\/bootstrap-color-la-gi\/\" target=\"_blank\" rel=\"noreferrer noopener\">Bootstrap Color: C\u00e1ch s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng m\u00e0u trong Bootstrap<\/a><\/strong><\/em><\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-cach-qu\u1ea3n-ly-responsive-navbar\"><strong>C\u00e1ch qu\u1ea3n l\u00fd Responsive Navbar<\/strong><\/h3>\n\n\n\n<p>Khi x\u00e2y d\u1ef1ng giao di\u1ec7n ph\u1ea3n h\u1ed3i linh ho\u1ea1t (responsive), b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng class <strong>navbar-expand-*<\/strong> \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111i\u1ec3m ng\u1eaft (breakpoint) t\u1ea1i \u0111\u00f3 navbar s\u1ebd m\u1edf r\u1ed9ng \u0111\u1ea7y \u0111\u1ee7. Tr\u00ean c\u00e1c m\u00e0n h\u00ecnh nh\u1ecf h\u01a1n, menu s\u1ebd t\u1ef1 \u0111\u1ed9ng thu g\u1ecdn l\u1ea1i v\u00e0 xu\u1ea5t hi\u1ec7n n\u00fat <strong>toggler<\/strong> \u0111\u1ec3 m\u1edf menu.<\/p>\n\n\n\n<p>V\u00ed d\u1ee5:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    &lt;nav class=\"navbar navbar-expand-lg bg-light\"&gt;\n       &lt;div class=\"container-fluid\"&gt;\n         &lt;a class=\"navbar-brand\" href=\"#\"&gt;Responsive Navbar&lt;\/a&gt;\n         &lt;button class=\"navbar-toggler\" type=\"button\" data-bs-toggle=\"collapse\"\n                 data-bs-target=\"#navbarResponsive\" aria-controls=\"navbarResponsive\"\n                 aria-expanded=\"false\" aria-label=\"Toggle navigation\"&gt;\n           &lt;span class=\"navbar-toggler-icon\"&gt;&lt;\/span&gt;\n         &lt;\/button&gt;\n         &lt;div class=\"collapse navbar-collapse\" id=\"navbarResponsive\"&gt;\n           &lt;ul class=\"navbar-nav me-auto\"&gt;\n             &lt;li class=\"nav-item\"&gt;\n               &lt;a class=\"nav-link active\" href=\"#\"&gt;Trang ch\u1ee7&lt;\/a&gt;\n             &lt;\/li&gt;\n             &lt;li class=\"nav-item\"&gt;\n               &lt;a class=\"nav-link\" href=\"#\"&gt;Gi\u1edbi thi\u1ec7u&lt;\/a&gt;\n             &lt;\/li&gt;\n           &lt;\/ul&gt;\n         &lt;\/div&gt;\n       &lt;\/div&gt;\n     &lt;\/nav&gt;\n&nbsp;<\/code><\/pre>\n\n\n\n<p>Trong \u0111\u00f3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>.navbar-expand-lg<\/strong> cho ph\u00e9p navbar m\u1edf r\u1ed9ng t\u1eeb m\u00e0n h\u00ecnh \u2265 992px (large)<\/li>\n\n\n\n<li>Menu s\u1ebd \u0111\u01b0\u1ee3c \u1ea9n v\u00e0o n\u00fat toggle khi nh\u1ecf h\u01a1n k\u00edch th\u01b0\u1edbc \u0111\u00f3<\/li>\n<\/ul>\n\n\n\n<p>K\u1ebft qu\u1ea3 hi\u1ec3n th\u1ecb:<\/p>\n\n\n\n<p>Tr\u00ean m\u00e1y t\u00ednh<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"109\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-67-640x109.png\" alt=\"\" class=\"wp-image-89663\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-67-640x109.png 640w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-67-300x51.png 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-67-200x34.png 200w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-67-768x130.png 768w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-67.png 800w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/figure>\n\n\n\n<p>Tr\u00ean \u0111i\u1ec7n tho\u1ea1i (l\u00fac ch\u01b0a m\u1edf menu v\u00e0 sau khi b\u1ea5m n\u00fat m\u1edf menu)<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"421\" height=\"517\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-68.png\" alt=\"\" class=\"wp-image-89664\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-68.png 421w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-68-244x300.png 244w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-68-163x200.png 163w\" sizes=\"auto, (max-width: 421px) 100vw, 421px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"420\" height=\"501\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-69.png\" alt=\"\" class=\"wp-image-89665\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-69.png 420w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-69-251x300.png 251w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-69-168x200.png 168w\" sizes=\"auto, (max-width: 420px) 100vw, 420px\" \/><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><em>\u0110\u1ecdc chi ti\u1ebft: <strong><a href=\"https:\/\/itviec.com\/blog\/cach-tuy-chinh-bootstrap-responsive\/\" target=\"_blank\" rel=\"noreferrer noopener\">Responsive trong Bootstrap: H\u01b0\u1edbng d\u1eabn t\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao<\/a><\/strong><\/em><\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-navbar-brand-logo-ten-website\"><strong>Navbar Brand (Logo \/ T\u00ean website)<\/strong><\/h3>\n\n\n\n<p>Class <strong>.navbar-brand<\/strong> \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 hi\u1ec3n th\u1ecb t\u00ean th\u01b0\u01a1ng hi\u1ec7u, logo ho\u1eb7c c\u1ea3 hai. B\u1ea1n c\u00f3 th\u1ec3 d\u00f9ng v\u1edbi c\u00e1c th\u1ebb nh\u01b0 <strong>&lt;a&gt;, &lt;span&gt;<\/strong>, ho\u1eb7c k\u1ebft h\u1ee3p h\u00ecnh \u1ea3nh v\u00e0 v\u0103n b\u1ea3n.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-hi\u1ec3n-th\u1ecb-ten-th\u01b0\u01a1ng-hi\u1ec7u-d\u01b0\u1edbi-d\u1ea1ng-ch\u1eef\"><strong>Hi\u1ec3n th\u1ecb t\u00ean th\u01b0\u01a1ng hi\u1ec7u d\u01b0\u1edbi d\u1ea1ng ch\u1eef<\/strong><\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>    &lt;nav class=\"navbar navbar-expand-lg bg-light\"&gt;\n       &lt;div class=\"container-fluid\"&gt;\n         &lt;a class=\"navbar-brand\" href=\"#\"&gt;MyWebsite&lt;\/a&gt;\n\n\n         &lt;div class=\"collapse navbar-collapse\" id=\"navbarResponsive\"&gt;\n           &lt;ul class=\"navbar-nav me-auto\"&gt;\n             &lt;li class=\"nav-item\"&gt;\n               &lt;a class=\"nav-link active\" href=\"#\"&gt;Trang ch\u1ee7&lt;\/a&gt;\n             &lt;\/li&gt;\n             &lt;li class=\"nav-item\"&gt;\n               &lt;a class=\"nav-link\" href=\"#\"&gt;Gi\u1edbi thi\u1ec7u&lt;\/a&gt;\n             &lt;\/li&gt;\n           &lt;\/ul&gt;\n         &lt;\/div&gt;\n       &lt;\/div&gt;\n     &lt;\/nav&gt;<\/code><\/pre>\n\n\n\n<p>&nbsp;&nbsp;K\u1ebft qu\u1ea3:<\/p>\n\n\n\n<p><img loading=\"lazy\" decoding=\"async\" width=\"624\" height=\"96\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXfPbvLk4_zIqTB8rhMWTqvjViLegiJ9a_d_frUBXWieEaYx3PgoqDG2QEVZ80fEWhKjKpLy_DtsjuSknBf7jOno4N2QpDEWHs1YKPbDCO9LxPFjinX8B7QFbjAJe5fZXn-LoITtVA?key=hcvR-vWgODhGcV9y9ApeMA\"><\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-hi\u1ec3n-th\u1ecb-logo-d\u01b0\u1edbi-d\u1ea1ng-hinh-\u1ea3nh\"><strong>Hi\u1ec3n th\u1ecb logo d\u01b0\u1edbi d\u1ea1ng h\u00ecnh \u1ea3nh<\/strong><\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>&nbsp;     &lt;nav class=\"navbar navbar-expand-lg bg-light\"&gt;\n       &lt;div class=\"container-fluid\"&gt;\n         &lt;a class=\"navbar-brand\" href=\"#\"&gt;MyWebsite&lt;\/a&gt;\n\n\n         &lt;div class=\"collapse navbar-collapse\" id=\"navbarResponsive\"&gt;\n           &lt;ul class=\"navbar-nav me-auto\"&gt;\n             &lt;li class=\"nav-item\"&gt;\n               &lt;a class=\"nav-link active\" href=\"#\"&gt;Trang ch\u1ee7&lt;\/a&gt;\n             &lt;\/li&gt;\n             &lt;li class=\"nav-item\"&gt;\n               &lt;a class=\"nav-link\" href=\"#\"&gt;Gi\u1edbi thi\u1ec7u&lt;\/a&gt;\n             &lt;\/li&gt;\n           &lt;\/ul&gt;\n         &lt;\/div&gt;\n       &lt;\/div&gt;\n     &lt;\/nav&gt;&nbsp;<\/code><\/pre>\n\n\n\n<p>K\u1ebft qu\u1ea3:<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"89\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-70-640x89.png\" alt=\"\" class=\"wp-image-89667\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-70-640x89.png 640w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-70-300x42.png 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-70-200x28.png 200w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-70-768x107.png 768w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-70.png 800w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-hi\u1ec3n-th\u1ecb-logo-va-ten-cong-ty-c\u1ea1nh-nhau\"><strong>Hi\u1ec3n th\u1ecb logo v\u00e0 t\u00ean c\u00f4ng ty c\u1ea1nh nhau<\/strong><\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>     &lt;nav class=\"navbar navbar-expand-lg bg-light\"&gt;\n       &lt;div class=\"container-fluid\"&gt;\n         &lt;a class=\"navbar-brand\" href=\"#\"&gt;\n           &lt;img src=\"https:\/\/getbootstrap.com\/docs\/5.3\/assets\/brand\/bootstrap-logo.svg\" alt=\"Logo\" width=\"30\" height=\"24\" class=\"d-inline-block align-text-top\"&gt;\n\t\tITViec Blog\n         &lt;\/a&gt;\n\n\n         &lt;div class=\"collapse navbar-collapse\" id=\"navbarCustom\"&gt;\n           &lt;ul class=\"navbar-nav me-auto mb-2 mb-lg-0\"&gt;\n             &lt;li class=\"nav-item\"&gt;&lt;a class=\"nav-link active\" href=\"#\"&gt;Trang ch\u1ee7&lt;\/a&gt;&lt;\/li&gt;\n             &lt;li class=\"nav-item\"&gt;&lt;a class=\"nav-link\" href=\"#\"&gt;Gi\u1edbi thi\u1ec7u&lt;\/a&gt;&lt;\/li&gt;\n             &lt;li class=\"nav-item\"&gt;&lt;a class=\"nav-link\" href=\"#\"&gt;Tin t\u1ee9c&lt;\/a&gt;&lt;\/li&gt;\n           &lt;\/ul&gt;\n         &lt;\/div&gt;\n       &lt;\/div&gt;\n     &lt;\/nav&gt;&nbsp;&nbsp;<\/code><\/pre>\n\n\n\n<p>K\u1ebft qu\u1ea3:<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"113\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-71-640x113.png\" alt=\"\" class=\"wp-image-89668\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-71-640x113.png 640w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-71-300x53.png 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-71-200x35.png 200w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-71-768x136.png 768w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-71.png 800w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-navbar-nav-menu-di\u1ec1u-h\u01b0\u1edbng\"><strong><\/strong><strong>Navbar Nav (Menu \u0111i\u1ec1u h\u01b0\u1edbng)<\/strong><\/h3>\n\n\n\n<p>Menu \u0111i\u1ec1u h\u01b0\u1edbng l\u00e0 n\u01a1i ch\u1ee9a c\u00e1c li\u00ean k\u1ebft ch\u00ednh d\u1eabn ng\u01b0\u1eddi d\u00f9ng t\u1edbi c\u00e1c trang quan tr\u1ecdng nh\u01b0 \u201cTrang ch\u1ee7\u201d, \u201cD\u1ecbch v\u1ee5\u201d, \u201cLi\u00ean h\u1ec7\u201d&#8230; \u0110\u1ec3 t\u1ea1o menu n\u00e0y, b\u1ea1n s\u1eed d\u1ee5ng m\u1ed9t danh s\u00e1ch <strong>ul<\/strong> k\u1ebft h\u1ee3p v\u1edbi c\u00e1c class <strong>.navbar-nav<\/strong>, <strong>.nav-item<\/strong> v\u00e0 <strong>.nav-link<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Class<strong> .navbar-nav<\/strong> \u0111\u1ecbnh ngh\u0129a v\u00f9ng ch\u1ee9a to\u00e0n b\u1ed9 menu<\/li>\n\n\n\n<li>M\u1ed7i m\u1ee5c menu l\u00e0 m\u1ed9t<strong> li.nav-item<\/strong>, trong \u0111\u00f3 <strong>a.nav-link<\/strong> l\u00e0 ph\u1ea7n li\u00ean k\u1ebft<\/li>\n<\/ul>\n\n\n\n<p>V\u00ed d\u1ee5:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>           &lt;ul class=\"navbar-nav me-auto mb-2 mb-lg-0\"&gt;\n             &lt;li class=\"nav-item\"&gt;&lt;a class=\"nav-link active\" href=\"#\"&gt;Trang ch\u1ee7&lt;\/a&gt;&lt;\/li&gt;\n             &lt;li class=\"nav-item\"&gt;&lt;a class=\"nav-link\" href=\"#\"&gt;Gi\u1edbi thi\u1ec7u&lt;\/a&gt;&lt;\/li&gt;\n             &lt;li class=\"nav-item\"&gt;&lt;a class=\"nav-link\" href=\"#\"&gt;Tin t\u1ee9c&lt;\/a&gt;&lt;\/li&gt;\n           &lt;\/ul&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/code><\/pre>\n\n\n\n<p>Ngo\u00e0i ra, b\u1ea1n c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p th\u00eam c\u00e1c class ti\u1ec7n \u00edch nh\u01b0 <strong>.ms-auto<\/strong> (\u0111\u1ea9y menu sang ph\u1ea3i) \u0111\u1ec3 ki\u1ec3m so\u00e1t v\u1ecb tr\u00ed. Menu n\u00e0y c\u0169ng h\u1ed7 tr\u1ee3 dropdown v\u00e0 bi\u1ec3u t\u01b0\u1ee3ng n\u1ebfu c\u1ea7n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-navbar-toggler-nut-menu-thu-g\u1ecdn\"><strong>Navbar Toggler (N\u00fat menu thu g\u1ecdn)<\/strong><\/h3>\n\n\n\n<p>Khi giao di\u1ec7n thu nh\u1ecf tr\u00ean mobile ho\u1eb7c tablet, menu d\u00e0i s\u1ebd kh\u00f4ng c\u00f2n \u0111\u1ee7 kh\u00f4ng gian \u0111\u1ec3 hi\u1ec3n th\u1ecb. Bootstrap gi\u1ea3i quy\u1ebft \u0111i\u1ec1u n\u00e0y b\u1eb1ng <strong>navbar-toggler<\/strong> \u2013 m\u1ed9t n\u00fat b\u1ea5m c\u00f3 bi\u1ec3u t\u01b0\u1ee3ng 3 g\u1ea1ch ngang (hamburger icon).<\/p>\n\n\n\n<p>N\u00fat n\u00e0y khi \u0111\u01b0\u1ee3c b\u1ea5m s\u1ebd hi\u1ec7n\/\u1ea9n ph\u1ea7n menu b\u00ean trong collapse. \u0110\u1ec3 s\u1eed d\u1ee5ng \u0111\u00fang, b\u1ea1n c\u1ea7n k\u1ebft h\u1ee3p c\u00e1c thu\u1ed9c t\u00ednh sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>data-bs-toggle=\u201ccollapse\u201d<\/strong>: cho ph\u00e9p Bootstrap x\u1eed l\u00fd hi\u1ec7u \u1ee9ng \u1ea9n\/hi\u1ec7n<\/li>\n\n\n\n<li><strong>data-bs-target=\u201c#navbarNav\u201d<\/strong>: li\u00ean k\u1ebft v\u1edbi id c\u1ee7a menu c\u1ea7n \u0111i\u1ec1u khi\u1ec3n<\/li>\n<\/ul>\n\n\n\n<p>V\u00ed d\u1ee5:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>         &lt;button class=\"navbar-toggler\" type=\"button\" data-bs-toggle=\"collapse\" data-bs-target=\"#navbarNav\"&gt;\n           &lt;span class=\"navbar-toggler-icon\"&gt;&lt;\/span&gt;\n         &lt;\/button&gt;<\/code><\/pre>\n\n\n\n<p><strong>C\u00e1c th\u00e0nh ph\u1ea7n ph\u1ee5 trong Navbar<\/strong><\/p>\n\n\n\n<p>Ngo\u00e0i c\u00e1c m\u1ee5c ch\u00ednh, Navbar Bootstrap c\u00f2n h\u1ed7 tr\u1ee3 th\u00eam nhi\u1ec1u th\u00e0nh ph\u1ea7n ph\u1ee5 \u0111\u1ec3 n\u00e2ng cao tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng nh\u01b0:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-bi\u1ec3u-m\u1eabu-forms\"><strong>Bi\u1ec3u m\u1eabu (Forms)<\/strong><\/h3>\n\n\n\n<p>B\u1ea1n c\u00f3 th\u1ec3 t\u00edch h\u1ee3p bi\u1ec3u m\u1eabu t\u00ecm ki\u1ebfm ho\u1eb7c form \u0111\u0103ng nh\u1eadp v\u00e0o trong navbar b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng form v\u00e0 k\u1ebft h\u1ee3p c\u00e1c class nh\u01b0 d-flex, form-control, btn&#8230;<\/p>\n\n\n\n<p>V\u00ed d\u1ee5 s\u1eed d\u1ee5ng form k\u1ebft h\u1ee3p d-flex \u0111\u1ec3 t\u1ea1o ra \u00f4 t\u00ecm ki\u1ebfm v\u00e0 n\u00fat \u201cT\u00ecm\u201d n\u1eb1m c\u1ea1nh b\u00ean ph\u1ea3i:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>     &lt;nav class=\"navbar navbar-expand-lg bg-light\" data-bs-theme=\"light\"&gt;\n       &lt;div class=\"container-fluid\"&gt;\n         &lt;a class=\"navbar-brand\" href=\"#\"&gt;\n           ITViec Blog\n         &lt;\/a&gt;\n\n\n         &lt;form class=\"d-flex\"&gt;\n           &lt;input class=\"form-control me-2\" type=\"search\" placeholder=\"T\u00ecm ki\u1ebfm\"&gt;\n           &lt;button class=\"btn btn-outline-dark\" type=\"submit\"&gt;T\u00ecm&lt;\/button&gt;\n         &lt;\/form&gt;\n       &lt;\/div&gt;\n     &lt;\/nav&gt;<\/code><\/pre>\n\n\n\n<p>K\u1ebft qu\u1ea3 hi\u1ec3n th\u1ecb:<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"158\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-72-640x158.png\" alt=\"\" class=\"wp-image-89670\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-72-640x158.png 640w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-72-300x74.png 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-72-200x49.png 200w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-72.png 666w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-dropdown-menu\"><strong>Dropdown Menu<\/strong><\/h3>\n\n\n\n<p>Bootstrap h\u1ed7 tr\u1ee3 menu th\u1ea3 xu\u1ed1ng (dropdown) gi\u00fap hi\u1ec3n th\u1ecb th\u00eam nhi\u1ec1u l\u1ef1a ch\u1ecdn trong m\u1ed9t m\u1ee5c menu b\u1eb1ng c\u00e1ch d\u00f9ng class <strong>dropdown, dropdown-toggle, dropdown-menu, dropdown-item<\/strong> \u0111\u1ec3 x\u00e2y d\u1ef1ng.<\/p>\n\n\n\n<p>V\u00ed d\u1ee5:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;nav class=\"navbar navbar-expand-lg bg-body-tertiary\"&gt;\n       &lt;div class=\"container-fluid\"&gt;\n         &lt;a class=\"navbar-brand\" href=\"#\"&gt;ITViec Blog&lt;\/a&gt;\n         &lt;div class=\"collapse navbar-collapse\" id=\"navbarNavDropdown\"&gt;\n           &lt;ul class=\"navbar-nav\"&gt;\n             &lt;li class=\"nav-item\"&gt;\n               &lt;a class=\"nav-link active\" aria-current=\"page\" href=\"#\"&gt;Trang ch\u1ee7&lt;\/a&gt;\n             &lt;\/li&gt;\n             &lt;li class=\"nav-item\"&gt;\n               &lt;a class=\"nav-link\" href=\"#\"&gt;S\u1ea3n ph\u1ea9m&lt;\/a&gt;\n             &lt;\/li&gt;\n             &lt;li class=\"nav-item\"&gt;\n               &lt;a class=\"nav-link\" href=\"#\"&gt;Chi ph\u00ed&lt;\/a&gt;\n             &lt;\/li&gt;\n             &lt;li class=\"nav-item dropdown\"&gt;\n               &lt;a class=\"nav-link dropdown-toggle\" href=\"#\" role=\"button\" data-bs-toggle=\"dropdown\" aria-expanded=\"false\"&gt;\n                 Th\u1ec3 lo\u1ea1i\n               &lt;\/a&gt;\n               &lt;ul class=\"dropdown-menu\"&gt;\n                 &lt;li&gt;&lt;a class=\"dropdown-item\" href=\"#\"&gt;V\u0103n H\u1ecdc&lt;\/a&gt;&lt;\/li&gt;\n                 &lt;li&gt;&lt;a class=\"dropdown-item\" href=\"#\"&gt;Gi\u1ea3i tr\u00ed&lt;\/a&gt;&lt;\/li&gt;\n                 &lt;li&gt;&lt;a class=\"dropdown-item\" href=\"#\"&gt;Nghi\u00ean c\u1ee9u&lt;\/a&gt;&lt;\/li&gt;\n               &lt;\/ul&gt;\n             &lt;\/li&gt;\n           &lt;\/ul&gt;\n         &lt;\/div&gt;\n       &lt;\/div&gt;\n     &lt;\/nav&gt;<\/code><\/pre>\n\n\n\n<p>Trong \u0111\u00f3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>S\u1eed d\u1ee5ng <strong>.dropdown<\/strong> \u1edf th\u1ebb <strong>&lt;li&gt;<\/strong> \u0111\u1ec3 khai b\u00e1o \u0111\u00e2y l\u00e0 m\u1ed9t m\u1ee5c trong menu \u0111i\u1ec1u h\u01b0\u1edbng c\u00f3 d\u1ea1ng dropdown<\/li>\n\n\n\n<li><strong>&lt;a class=\u201cnav-link dropdown-toggle\u201d &#8230;&gt;<\/strong> l\u00e0 li\u00ean k\u1ebft ch\u00ednh hi\u1ec3n th\u1ecb ch\u1eef \u201cTh\u1ec3 lo\u1ea1i\u201d v\u00e0 c\u00f3 m\u0169i t\u00ean ch\u1ec9 dropdown. Class <strong>dropdown-toggle<\/strong> k\u00edch ho\u1ea1t hi\u1ec7u \u1ee9ng x\u1ed5 xu\u1ed1ng<\/li>\n\n\n\n<li><strong>data-bs-toggle=\u201cdropdown\u201d<\/strong>: Bootstrap d\u00f9ng thu\u1ed9c t\u00ednh n\u00e0y \u0111\u1ec3 hi\u1ec3u r\u1eb1ng \u0111\u00e2y l\u00e0 ph\u1ea7n t\u1eed s\u1ebd k\u00edch ho\u1ea1t dropdown khi \u0111\u01b0\u1ee3c click<\/li>\n<\/ul>\n\n\n\n<p>K\u1ebft qu\u1ea3:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"626\" height=\"246\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-73.png\" alt=\"\" class=\"wp-image-89671\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-73.png 626w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-73-300x118.png 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-73-200x79.png 200w\" sizes=\"auto, (max-width: 626px) 100vw, 626px\" \/><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><em>\u0110\u1ecdc chi ti\u1ebft: <strong><a href=\"https:\/\/itviec.com\/blog\/dropdown-bootstrap-la-gi\/\" target=\"_blank\" rel=\"noreferrer noopener\">Dropdown Bootstrap l\u00e0 g\u00ec: H\u01b0\u1edbng d\u1eabn c\u00e1ch d\u00f9ng chi ti\u1ebft cho ng\u01b0\u1eddi m\u1edbi<\/a><\/strong><\/em><\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-bai-t\u1eadp-luy\u1ec7n-t\u1eadp-s\u1eed-d\u1ee5ng-navbar-bootstrap\"><span class=\"ez-toc-section\" id=\"Bai_tap_luyen_tap_su_dung_Navbar_Bootstrap\"><\/span><strong>B\u00e0i t\u1eadp luy\u1ec7n t\u1eadp s\u1eed d\u1ee5ng Navbar Bootstrap<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-bai-t\u1eadp-c\u01a1-b\u1ea3n\"><strong>B\u00e0i t\u1eadp c\u01a1 b\u1ea3n<\/strong><\/h3>\n\n\n\n<p>T\u1ea1o m\u1ed9t Navbar c\u00f3 n\u1ec1n s\u00e1ng, bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>T\u00ean th\u01b0\u01a1ng hi\u1ec7u \u1edf b\u00ean tr\u00e1i<\/li>\n\n\n\n<li>Menu \u0111i\u1ec1u h\u01b0\u1edbng g\u1ed3m 3 m\u1ee5c: Trang ch\u1ee7, Gi\u1edbi thi\u1ec7u, Li\u00ean h\u1ec7<\/li>\n\n\n\n<li>\u0110\u1eb7t Navbar \u1edf tr\u00ean c\u00f9ng c\u1ee7a trang<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"634\" height=\"151\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-74.png\" alt=\"\" class=\"wp-image-89672\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-74.png 634w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-74-300x71.png 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-74-200x48.png 200w\" sizes=\"auto, (max-width: 634px) 100vw, 634px\" \/><\/figure>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>L\u1eddi gi\u1ea3i B\u00e0i t\u1eadp 1<\/summary>\n<p>C\u00e1ch l\u00e0m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>D\u00f9ng <strong>&lt;nav class=\u201cnavbar\u201d&gt; <\/strong>\u0111\u1ec3 t\u1ea1o thanh \u0111i\u1ec1u h\u01b0\u1edbng<\/li>\n\n\n\n<li>D\u00f9ng <strong>&lt;ul class=\u201cnavbar-nav\u201d&gt;<\/strong> \u0111\u1ec3 ch\u1ee9a c\u00e1c m\u1ee5c menu<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>&nbsp;     &lt;nav class=\"navbar navbar-light bg-light\"&gt;<br>       &lt;div class=\"container-fluid\"&gt;<br>         &lt;a class=\"navbar-brand\" href=\"#\"&gt;MyWebsite&lt;\/a&gt;<br>         &lt;ul class=\"navbar-nav d-flex flex-row gap-3\"&gt;<br>           &lt;li class=\"nav-item\"&gt;<br>             &lt;a class=\"nav-link active\" href=\"#\"&gt;Trang ch\u1ee7&lt;\/a&gt;<br>           &lt;\/li&gt;<br>           &lt;li class=\"nav-item\"&gt;<br>             &lt;a class=\"nav-link\" href=\"#\"&gt;Gi\u1edbi thi\u1ec7u&lt;\/a&gt;<br>           &lt;\/li&gt;<br>           &lt;li class=\"nav-item\"&gt;<br>             &lt;a class=\"nav-link\" href=\"#\"&gt;Li\u00ean h\u1ec7&lt;\/a&gt;<br>           &lt;\/li&gt;<br>         &lt;\/ul&gt;<br>       &lt;\/div&gt;<br>     &lt;\/nav&gt;<\/code><\/pre>\n<\/details>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-bai-t\u1eadp-m\u1ee9c-trung-binh\"><strong>B\u00e0i t\u1eadp m\u1ee9c trung b\u00ecnh<\/strong><\/h3>\n\n\n\n<p>T\u00edch h\u1ee3p n\u00fat thu g\u1ecdn menu (navbar-toggler) v\u00e0 form t\u00ecm ki\u1ebfm b\u1eb1ng c\u00e1ch:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Gi\u1eef l\u1ea1i n\u1ed9i dung b\u00e0i t\u1eadp c\u1ea5p \u0111\u1ed9 1<\/li>\n\n\n\n<li>B\u1ed5 sung menu thu g\u1ecdn tr\u00ean m\u00e0n h\u00ecnh nh\u1ecf<\/li>\n\n\n\n<li>Th\u00eam form t\u00ecm ki\u1ebfm b\u00ean ph\u1ea3i c\u00f3 input v\u00e0 n\u00fat \u201cT\u00ecm\u201d<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"128\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-75-640x128.png\" alt=\"\" class=\"wp-image-89673\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-75-640x128.png 640w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-75-300x60.png 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-75-200x40.png 200w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-75-768x154.png 768w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-75.png 800w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/figure>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>L\u1eddi gi\u1ea3i B\u00e0i t\u1eadp 2<\/summary>\n<p>C\u00e1ch l\u00e0m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>D\u00f9ng <strong>navbar-expand-lg<\/strong> \u0111\u1ec3 b\u1eadt responsive<\/li>\n\n\n\n<li>Th\u00eam n\u00fat toggle (<strong>navbar-toggler<\/strong>) v\u00e0 collapse \u0111\u1ec3 \u1ea9n\/hi\u1ec7n menu<\/li>\n\n\n\n<li>B\u1ed5 sung <strong>&lt;form class=\u201cd-flex\u201d&gt;<\/strong> \u1edf b\u00ean ph\u1ea3i \u0111\u1ec3 l\u00e0m thanh t\u00ecm ki\u1ebfm.<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>     &lt;nav class=\"navbar navbar-expand-lg navbar-light bg-light\"&gt;<br>       &lt;div class=\"container-fluid\"&gt;<br>         &lt;a class=\"navbar-brand\" href=\"#\"&gt;MyWebsite&lt;\/a&gt;<br>         &lt;button class=\"navbar-toggler\" type=\"button\" data-bs-toggle=\"collapse\" data-bs-target=\"#navbarNav\"&gt;<br>           &lt;span class=\"navbar-toggler-icon\"&gt;&lt;\/span&gt;<br>         &lt;\/button&gt;<br>         &lt;div class=\"collapse navbar-collapse\" id=\"navbarNav\"&gt;<br>           &lt;ul class=\"navbar-nav me-auto mb-2 mb-lg-0\"&gt;<br>             &lt;li class=\"nav-item\"&gt;<br>               &lt;a class=\"nav-link active\" href=\"#\"&gt;Trang ch\u1ee7&lt;\/a&gt;<br>             &lt;\/li&gt;<br>             &lt;li class=\"nav-item\"&gt;<br>               &lt;a class=\"nav-link\" href=\"#\"&gt;Gi\u1edbi thi\u1ec7u&lt;\/a&gt;<br>             &lt;\/li&gt;<br>             &lt;li class=\"nav-item\"&gt;<br>               &lt;a class=\"nav-link\" href=\"#\"&gt;Li\u00ean h\u1ec7&lt;\/a&gt;<br>             &lt;\/li&gt;<br>           &lt;\/ul&gt;<br>           &lt;form class=\"d-flex\"&gt;<br>             &lt;input class=\"form-control me-2\" type=\"search\" placeholder=\"T\u00ecm ki\u1ebfm\"&gt;<br>             &lt;button class=\"btn btn-outline-success\" type=\"submit\"&gt;T\u00ecm&lt;\/button&gt;<br>           &lt;\/form&gt;<br>         &lt;\/div&gt;<br>       &lt;\/div&gt;<br>     &lt;\/nav&gt;&nbsp;&nbsp;&nbsp;<\/code><\/pre>\n<\/details>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-bai-t\u1eadp-m\u1ee9c-nang-cao\"><strong>B\u00e0i t\u1eadp m\u1ee9c n\u00e2ng cao<\/strong><\/h3>\n\n\n\n<p>K\u1ebft h\u1ee3p nhi\u1ec1u th\u00e0nh ph\u1ea7n ph\u1ee5 \u0111\u1ec3 t\u1ea1o navbar ho\u00e0n ch\u1ec9nh h\u01a1n, bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Gi\u1eef l\u1ea1i n\u1ed9i dung b\u00e0i c\u1ea5p \u0111\u1ed9 2<\/li>\n\n\n\n<li>Th\u00eam m\u1ed9t m\u1ee5c \u201cD\u1ecbch v\u1ee5\u201d c\u00f3 d\u1ea1ng dropdown g\u1ed3m: Thi\u1ebft k\u1ebf web, Marketing, Kh\u00e1c<\/li>\n\n\n\n<li>Th\u00eam n\u00fat \u201c\u0110\u0103ng nh\u1eadp\u201d \u1edf g\u00f3c ph\u1ea3i Navbar<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"169\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-76-640x169.png\" alt=\"\" class=\"wp-image-89674\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-76-640x169.png 640w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-76-300x79.png 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-76-200x53.png 200w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-76-768x203.png 768w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-76.png 800w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/figure>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>L\u1eddi gi\u1ea3i B\u00e0i t\u1eadp 3<\/summary>\n<p>C\u00e1ch l\u00e0m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>K\u1ebf th\u1eeba c\u1ea5u tr\u00fac t\u1eeb c\u1ea5p \u0111\u1ed9 2<\/li>\n\n\n\n<li>Th\u00eam m\u1ee5c dropdown b\u1eb1ng <strong>nav-item dropdown<\/strong> v\u00e0 <strong>dropdown-menu<\/strong><\/li>\n\n\n\n<li>\u0110\u1eb7t th\u00eam n\u00fat \u0110\u0103ng nh\u1eadp s\u1eed d\u1ee5ng class btn \u1edf b\u00ean ph\u1ea3i navbar<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>     &lt;nav class=\"navbar navbar-expand-lg navbar-light bg-light\"&gt;\n       &lt;div class=\"container-fluid\"&gt;\n         &lt;a class=\"navbar-brand\" href=\"#\"&gt;MyWebsite&lt;\/a&gt;\n         &lt;button class=\"navbar-toggler\" type=\"button\" data-bs-toggle=\"collapse\" data-bs-target=\"#navbarNav\"&gt;\n           &lt;span class=\"navbar-toggler-icon\"&gt;&lt;\/span&gt;\n         &lt;\/button&gt;\n         &lt;div class=\"collapse navbar-collapse\" id=\"navbarNav\"&gt;\n           &lt;ul class=\"navbar-nav me-auto mb-2 mb-lg-0\"&gt;\n             &lt;li class=\"nav-item\"&gt;\n               &lt;a class=\"nav-link active\" href=\"#\"&gt;Trang ch\u1ee7&lt;\/a&gt;\n             &lt;\/li&gt;\n             &lt;li class=\"nav-item dropdown\"&gt;\n               &lt;a class=\"nav-link dropdown-toggle\" href=\"#\" id=\"servicesDropdown\" role=\"button\" data-bs-toggle=\"dropdown\"&gt;\n                 D\u1ecbch v\u1ee5\n               &lt;\/a&gt;\n               &lt;ul class=\"dropdown-menu\" aria-labelledby=\"servicesDropdown\"&gt;\n                 &lt;li&gt;&lt;a class=\"dropdown-item\" href=\"#\"&gt;Thi\u1ebft k\u1ebf web&lt;\/a&gt;&lt;\/li&gt;\n                 &lt;li&gt;&lt;a class=\"dropdown-item\" href=\"#\"&gt;Marketing&lt;\/a&gt;&lt;\/li&gt;\n                 &lt;li&gt;&lt;a class=\"dropdown-item\" href=\"#\"&gt;Kh\u00e1c&lt;\/a&gt;&lt;\/li&gt;\n               &lt;\/ul&gt;\n             &lt;\/li&gt;\n             &lt;li class=\"nav-item\"&gt;\n               &lt;a class=\"nav-link\" href=\"#\"&gt;Li\u00ean h\u1ec7&lt;\/a&gt;\n             &lt;\/li&gt;\n           &lt;\/ul&gt;\n           &lt;form class=\"d-flex me-3\"&gt;\n             &lt;input class=\"form-control me-2\" type=\"search\" placeholder=\"T\u00ecm ki\u1ebfm\"&gt;\n             &lt;button class=\"btn btn-outline-success\" type=\"submit\"&gt;T\u00ecm&lt;\/button&gt;\n           &lt;\/form&gt;\n           &lt;a href=\"#\" class=\"btn btn-outline-primary\"&gt;\u0110\u0103ng nh\u1eadp&lt;\/a&gt;\n         &lt;\/div&gt;\n       &lt;\/div&gt;\n     &lt;\/nav&gt;<\/code><\/pre>\n<\/details>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-m\u1ed9t-s\u1ed1-l\u01b0u-y-khi-s\u1eed-d\u1ee5ng-navbar-trong-bootstrap\"><span class=\"ez-toc-section\" id=\"Mot_so_luu_y_khi_su_dung_Navbar_trong_Bootstrap\"><\/span><strong>M\u1ed9t s\u1ed1 l\u01b0u \u00fd khi s\u1eed d\u1ee5ng Navbar trong Bootstrap<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>D\u00f9 Navbar trong Bootstrap r\u1ea5t m\u1ea1nh m\u1ebd v\u00e0 d\u1ec5 d\u00f9ng, nh\u01b0ng v\u1eabn c\u00f3 m\u1ed9t s\u1ed1 \u0111i\u1ec3m quan tr\u1ecdng c\u1ea7n l\u01b0u \u00fd khi tri\u1ec3n khai v\u00e0o d\u1ef1 \u00e1n th\u1ef1c t\u1ebf:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Gi\u1eef Navbar lu\u00f4n n\u1eb1m tr\u00ean c\u00f9ng khi cu\u1ed9n trang:<\/strong> \u0110\u1ec3 thanh \u0111i\u1ec1u h\u01b0\u1edbng lu\u00f4n hi\u1ec3n th\u1ecb khi ng\u01b0\u1eddi d\u00f9ng cu\u1ed9n trang, h\u00e3y th\u00eam class <strong>fixed-top<\/strong>. L\u01b0u \u00fd: C\u1ea7n ch\u1eeba kho\u1ea3ng tr\u1ed1ng ph\u00eda tr\u00ean n\u1ed9i dung ch\u00ednh b\u1eb1ng c\u00e1ch th\u00eam <strong>padding-top<\/strong> t\u01b0\u01a1ng \u1ee9ng v\u1edbi chi\u1ec1u cao <strong>navbar<\/strong> \u0111\u1ec3 tr\u00e1nh b\u1ecb che khu\u1ea5t.<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>     &lt;nav class=\"navbar fixed-top\"&gt;\n       ...\n     &lt;\/nav&gt;<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ki\u1ec3m so\u00e1t \u0111\u1ed9 r\u1ed9ng v\u00e0 c\u0103n gi\u1eefa n\u1ed9i dung:<\/strong> S\u1eed d\u1ee5ng .<strong>container<\/strong> (c\u1ed1 \u0111\u1ecbnh \u0111\u1ed9 r\u1ed9ng) ho\u1eb7c<strong> .container-fluid (<\/strong>k\u00e9o d\u00e0i to\u00e0n chi\u1ec1u ngang m\u00e0n h\u00ecnh<strong>) <\/strong>\u0111\u1ec3 c\u0103n ch\u1ec9nh n\u1ed9i dung b\u00ean trong navbar.<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>     &lt;nav class=\"navbar navbar-expand-lg navbar-light bg-light\"&gt;\n       &lt;div class=\"container-fluid\"&gt;\n          ...\n\t&lt;\/div&gt;\n    &lt;\/nav&gt;&nbsp;<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Tr\u00e1nh tr\u00f9ng ID trong c\u00e1c th\u00e0nh ph\u1ea7n collapse: <\/strong>N\u1ebfu b\u1ea1n c\u00f3 nhi\u1ec1u navbar tr\u00ean c\u00f9ng m\u1ed9t trang (v\u00ed d\u1ee5: navbar ch\u00ednh v\u00e0 ph\u1ee5), h\u00e3y \u0111\u1ea3m b\u1ea3o m\u1ed7i ph\u1ea7n collapse c\u00f3 id kh\u00e1c nhau \u0111\u1ec3 tr\u00e1nh xung \u0111\u1ed9t khi toggle.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-cac-cau-h\u1ecfi-th\u01b0\u1eddng-g\u1eb7p-v\u1ec1-navbar-bootstrap\"><span class=\"ez-toc-section\" id=\"Cac_cau_hoi_thuong_gap_ve_Navbar_bootstrap\"><\/span><strong>C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 Navbar bootstrap<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-lam-sao-d\u1ec3-can-gi\u1eefa-cac-m\u1ee5c-menu-trong-navbar\"><strong>L\u00e0m sao \u0111\u1ec3 c\u0103n gi\u1eefa c\u00e1c m\u1ee5c menu trong Navbar?<\/strong><\/h3>\n\n\n\n<p>Trong navbar, b\u1ea1n c\u00f3 th\u1ec3 c\u0103n gi\u1eefa c\u00e1c m\u1ee5c menu b\u1eb1ng c\u00e1ch th\u00eam class <strong>.mx-auto<\/strong> v\u00e0o ph\u1ea7n <strong>ul.navbar-nav<\/strong> \u0111\u1ec3 \u00e1p d\u1ee5ng margin tr\u00e1i\/ph\u1ea3i t\u1ef1 \u0111\u1ed9ng. Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, c\u1ea7n \u0111\u1ea3m b\u1ea3o ph\u1ea7n navbar \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng <strong>.d-flex <\/strong>ho\u1eb7c s\u1eed d\u1ee5ng grid\/flex container ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n<p>V\u00ed d\u1ee5:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>   &lt;nav class=\"navbar navbar-light bg-light\"&gt;\n     &lt;div class=\"container-fluid\"&gt;\n       &lt;ul class=\"navbar-nav d-flex flex-row gap-3 mx-auto mb-2\"&gt;\n         &lt;li class=\"nav-item\"&gt;&lt;a class=\"nav-link\" href=\"#\"&gt;Trang ch\u1ee7&lt;\/a&gt;&lt;\/li&gt;\n         &lt;li class=\"nav-item\"&gt;&lt;a class=\"nav-link\" href=\"#\"&gt;Gi\u1edbi thi\u1ec7u&lt;\/a&gt;&lt;\/li&gt;\n         &lt;li class=\"nav-item\"&gt;&lt;a class=\"nav-link\" href=\"#\"&gt;Li\u00ean h\u1ec7&lt;\/a&gt;&lt;\/li&gt;\n       &lt;\/ul&gt;\n     &lt;\/div&gt;\n   &lt;\/nav&gt;<\/code><\/pre>\n\n\n\n<p>K\u1ebft qu\u1ea3 hi\u1ec3n th\u1ecb:<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"107\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-77-640x107.png\" alt=\"\" class=\"wp-image-89676\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-77-640x107.png 640w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-77-300x50.png 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-77-200x33.png 200w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-77-768x128.png 768w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-77.png 800w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-navbar-co-h\u1ed7-tr\u1ee3-menu-da-c\u1ea5p-multi-level-khong\"><strong>Navbar c\u00f3 h\u1ed7 tr\u1ee3 menu \u0111a c\u1ea5p (multi-level) kh\u00f4ng?<\/strong><\/h3>\n\n\n\n<p>M\u1eb7c \u0111\u1ecbnh Bootstrap 5 ch\u1ec9 h\u1ed7 tr\u1ee3 1 c\u1ea5p dropdown. N\u1ebfu b\u1ea1n mu\u1ed1n t\u1ea1o menu nhi\u1ec1u c\u1ea5p, b\u1ea1n c\u1ea7n vi\u1ebft th\u00eam CSS t\u00f9y ch\u1ec9nh, ho\u1eb7c s\u1eed d\u1ee5ng plugin JavaScript h\u1ed7 tr\u1ee3 dropdown l\u1ed3ng nhau (nh\u01b0 Popper.js n\u00e2ng cao ho\u1eb7c Mega Menu). Nh\u01b0ng h\u00e3y l\u01b0u \u00fd ki\u1ec3m tra k\u1ef9 tr\u00ean thi\u1ebft b\u1ecb di \u0111\u1ed9ng \u0111\u1ec3 tr\u00e1nh l\u1ed7i hi\u1ec3n th\u1ecb v\u1edbi menu l\u1ed3ng nhau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-cach-them-icon-vao-menu-navbar\"><strong>C\u00e1ch th\u00eam icon v\u00e0o menu Navbar?<\/strong><\/h3>\n\n\n\n<p>B\u1ea1n c\u00f3 th\u1ec3 d\u00f9ng th\u01b0 vi\u1ec7n icon nh\u01b0 <a href=\"https:\/\/itviec.com\/blog\/bootstrap-icon-la-gi\/\" target=\"_blank\" rel=\"noreferrer noopener\">Bootstrap Icons<\/a>, Font Awesome, ho\u1eb7c b\u1ea5t k\u1ef3 th\u01b0 vi\u1ec7n SVG n\u00e0o \u0111\u1ec3 th\u00eam c\u00e1c ph\u1ea7n t\u1eed <strong>&lt;i&gt;<\/strong> v\u00e0o Navbar. V\u00ed d\u1ee5 d\u00f9ng <a href=\"https:\/\/itviec.com\/blog\/bootstrap-icon-la-gi\/\" target=\"_blank\" rel=\"noreferrer noopener\">Bootstrap Icons<\/a>:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code> &lt;nav class=\"navbar navbar-light bg-light\"&gt;\n   &lt;div class=\"container-fluid\"&gt;\n     &lt;a class=\"navbar-brand\" href=\"#\"&gt;\n       &lt;i class=\"bi bi-lightning-fill\"&gt;&lt;\/i&gt; MyWebsite\n     &lt;\/a&gt;\n     &lt;ul class=\"navbar-nav d-flex flex-row gap-3\"&gt;\n       &lt;li class=\"nav-item\"&gt;\n         &lt;a class=\"nav-link active\" href=\"#\"&gt;\n           &lt;i class=\"bi bi-house-door\"&gt;&lt;\/i&gt; Trang ch\u1ee7\n         &lt;\/a&gt;\n       &lt;\/li&gt;\n       &lt;li class=\"nav-item\"&gt;\n         &lt;a class=\"nav-link\" href=\"#\"&gt;\n           &lt;i class=\"bi bi-info-circle\"&gt;&lt;\/i&gt; Gi\u1edbi thi\u1ec7u\n         &lt;\/a&gt;\n       &lt;\/li&gt;\n     &lt;\/ul&gt;\n   &lt;\/div&gt;\n &lt;\/nav&gt;<\/code><\/pre>\n\n\n\n<p>K\u1ebft qu\u1ea3:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"631\" height=\"147\" src=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-78.png\" alt=\"\" class=\"wp-image-89677\" srcset=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-78.png 631w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-78-300x70.png 300w, https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/07\/image-78-200x47.png 200w\" sizes=\"auto, (max-width: 631px) 100vw, 631px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-t\u1ed5ng-k\u1ebft\"><span class=\"ez-toc-section\" id=\"Tong_Ket\"><\/span><strong>T\u1ed5ng K\u1ebft<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Navbar trong Bootstrap l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n quan tr\u1ecdng gi\u00fap x\u00e2y d\u1ef1ng thanh \u0111i\u1ec1u h\u01b0\u1edbng Header r\u00f5 r\u00e0ng, th\u00e2n thi\u1ec7n v\u1edbi ng\u01b0\u1eddi d\u00f9ng v\u00e0 d\u1ec5 d\u00e0ng t\u00f9y bi\u1ebfn. Nh\u1edd v\u00e0o h\u1ec7 th\u1ed1ng class linh ho\u1ea1t, kh\u1ea3 n\u0103ng responsive m\u1ea1nh m\u1ebd v\u00e0 t\u00edch h\u1ee3p s\u1eb5n nhi\u1ec1u t\u00ednh n\u0103ng nh\u01b0 dropdown, toggler hay t\u00ecm ki\u1ebfm, navbar Bootstrap ho\u00e0n to\u00e0n ph\u00f9 h\u1ee3p v\u1edbi m\u1ecdi lo\u1ea1i d\u1ef1 \u00e1n t\u1eeb c\u00e1 nh\u00e2n \u0111\u1ebfn doanh nghi\u1ec7p.<\/p>\n\n\n\n<p>Qua b\u00e0i vi\u1ebft n\u00e0y, ITviec hy v\u1ecdng b\u1ea1n \u0111\u00e3 n\u1eafm \u0111\u01b0\u1ee3c c\u1ea5u tr\u00fac, c\u00e1ch s\u1eed d\u1ee5ng v\u00e0 t\u00f9y ch\u1ec9nh navbar \u0111\u1ec3 \u00e1p d\u1ee5ng hi\u1ec7u qu\u1ea3 v\u00e0o giao di\u1ec7n web c\u1ee7a m\u00ecnh.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Trong giao di\u1ec7n web, ph\u1ea7n header kh\u00f4ng ch\u1ec9 l\u00e0 v\u1ecb tr\u00ed \u0111\u1eb7t logo, m\u00e0 c\u00f2n \u0111\u00f3ng vai tr\u00f2 \u0111i\u1ec1u h\u01b0\u1edbng quan tr\u1ecdng, th\u01b0\u1eddng ch\u1ee9a menu, \u00f4 t\u00ecm ki\u1ebfm ho\u1eb7c th\u00f4ng tin ng\u01b0\u1eddi d\u00f9ng. 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