{"id":23179,"date":"2022-10-04T15:00:36","date_gmt":"2022-10-04T15:00:36","guid":{"rendered":"https:\/\/kb.hostatom.com\/?p=23179"},"modified":"2025-10-20T09:27:25","modified_gmt":"2025-10-20T09:27:25","slug":"html-id-attribute","status":"publish","type":"post","link":"https:\/\/kb.hostatom.com\/lesson\/23179\/","title":{"rendered":"HTML\u00a0ID Attribute"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"23179\" class=\"elementor elementor-23179\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5b361c5d e-flex e-con-boxed e-con e-parent\" data-id=\"5b361c5d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d2ba5ba elementor-widget elementor-widget-text-editor\" data-id=\"d2ba5ba\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Attribute <code>id<\/code> \u0e43\u0e0a\u0e49\u0e40\u0e1e\u0e37\u0e48\u0e2d\u0e23\u0e30\u0e1a\u0e38 <strong>\u0e23\u0e2b\u0e31\u0e2a\u0e40\u0e09\u0e1e\u0e32\u0e30 (Unique Identifier)<\/strong> \u0e2a\u0e33\u0e2b\u0e23\u0e31\u0e1a\u0e2d\u0e07\u0e04\u0e4c\u0e1b\u0e23\u0e30\u0e01\u0e2d\u0e1a HTML<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5efc266 elementor-alert-warning elementor-widget elementor-widget-alert\" data-id=\"5efc266\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"alert.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-alert\" role=\"alert\">\n\n\t\t\t\n\t\t\t\t\t\t<span class=\"elementor-alert-description\">\u26a0\ufe0f \u0e43\u0e19\u0e2b\u0e19\u0e49\u0e32 HTML \u0e40\u0e14\u0e35\u0e22\u0e27\u0e01\u0e31\u0e19 \u0e44\u0e21\u0e48\u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16\u0e21\u0e35\u0e2b\u0e25\u0e32\u0e22\u0e2d\u0e07\u0e04\u0e4c\u0e1b\u0e23\u0e30\u0e01\u0e2d\u0e1a\u0e17\u0e35\u0e48\u0e43\u0e0a\u0e49 <code>id<\/code> \u0e40\u0e14\u0e35\u0e22\u0e27\u0e01\u0e31\u0e19\u0e44\u0e14\u0e49\n<\/span>\n\t\t\t\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-31310db elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"31310db\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-13b4ce8 elementor-widget elementor-widget-heading\" data-id=\"13b4ce8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u0e01\u0e32\u0e23\u0e43\u0e0a\u0e49 Attribute id<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ccb7d8a elementor-widget elementor-widget-text-editor\" data-id=\"ccb7d8a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><code>id<\/code> \u0e43\u0e0a\u0e49\u0e40\u0e1e\u0e37\u0e48\u0e2d\u0e23\u0e30\u0e1a\u0e38\u0e23\u0e2b\u0e31\u0e2a\u0e40\u0e09\u0e1e\u0e32\u0e30\u0e43\u0e2b\u0e49\u0e01\u0e31\u0e1a Element \u0e43\u0e19\u0e2b\u0e19\u0e49\u0e32 HTML \u0e42\u0e14\u0e22\u0e04\u0e48\u0e32\u0e02\u0e2d\u0e07 <code>id<\/code> \u0e15\u0e49\u0e2d\u0e07\u0e44\u0e21\u0e48\u0e0b\u0e49\u0e33\u0e01\u0e31\u0e19\u0e43\u0e19\u0e40\u0e2d\u0e01\u0e2a\u0e32\u0e23\u0e40\u0e14\u0e35\u0e22\u0e27\u0e01\u0e31\u0e19<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c60a84f elementor-widget elementor-widget-text-editor\" data-id=\"c60a84f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t\u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16\u0e43\u0e0a\u0e49\u0e44\u0e14\u0e49\u0e17\u0e31\u0e49\u0e07\u0e01\u0e31\u0e1a CSS \u0e41\u0e25\u0e30 JavaScript \u0e40\u0e1e\u0e37\u0e48\u0e2d\u0e08\u0e31\u0e14\u0e23\u0e39\u0e1b\u0e41\u0e1a\u0e1a \u0e2b\u0e23\u0e37\u0e2d\u0e40\u0e02\u0e49\u0e32\u0e16\u0e36\u0e07 Element \u0e40\u0e09\u0e1e\u0e32\u0e30\u0e44\u0e14\u0e49\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-de75bb0 elementor-widget elementor-widget-text-editor\" data-id=\"de75bb0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>\u0e44\u0e27\u0e22\u0e32\u0e01\u0e23\u0e13\u0e4c (Syntax) : <\/strong>\u0e43\u0e0a\u0e49\u0e40\u0e04\u0e23\u0e37\u0e48\u0e2d\u0e07\u0e2b\u0e21\u0e32\u0e22 <code>#<\/code> \u0e15\u0e32\u0e21\u0e14\u0e49\u0e27\u0e22\u0e0a\u0e37\u0e48\u0e2d <code>id<\/code> \u0e41\u0e25\u0e49\u0e27\u0e43\u0e2a\u0e48 CSS Properties \u0e20\u0e32\u0e22\u0e43\u0e19 <code>{ }<\/code><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9c29d69 elementor-widget elementor-widget-code-highlight\" data-id=\"9c29d69\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-highlight.default\">\n\t\t\t\t\t\t\t<div class=\"prismjs-default copy-to-clipboard \">\n\t\t\t<pre data-line=\"\" class=\"highlight-height language-html line-numbers\">\n\t\t\t\t<code readonly=\"true\" class=\"language-html\">\n\t\t\t\t\t<xmp><!DOCTYPE html>\r\n<html>\r\n<head>\r\n<style>\r\n#myHeader {\r\n  background-color: lightblue;\r\n  color: black;\r\n  padding: 40px;\r\n  text-align: center;\r\n} \r\n<\/style>\r\n<\/head>\r\n<body>\r\n\r\n<h2>The id Attribute<\/h2>\r\n<p>Use CSS to style an element with the id \"myHeader\":<\/p>\r\n\r\n<h1 id=\"myHeader\">My Header<\/h1>\r\n\r\n<\/body>\r\n<\/html><\/xmp>\n\t\t\t\t<\/code>\n\t\t\t<\/pre>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2fb3a4e elementor-widget elementor-widget-button\" data-id=\"2fb3a4e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/kb.hostatom.com\/lesson\/html\/tryhtml?filename=id_css\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-external-link-alt\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M432,320H400a16,16,0,0,0-16,16V448H64V128H208a16,16,0,0,0,16-16V80a16,16,0,0,0-16-16H48A48,48,0,0,0,0,112V464a48,48,0,0,0,48,48H400a48,48,0,0,0,48-48V336A16,16,0,0,0,432,320ZM488,0h-128c-21.37,0-32.05,25.91-17,41l35.73,35.73L135,320.37a24,24,0,0,0,0,34L157.67,377a24,24,0,0,0,34,0L435.28,133.32,471,169c15,15,41,4.5,41-17V24A24,24,0,0,0,488,0Z\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">\u0e14\u0e39\u0e1c\u0e25\u0e25\u0e31\u0e1e\u0e18\u0e4c<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-275cfa2 elementor-alert-warning elementor-widget elementor-widget-alert\" data-id=\"275cfa2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"alert.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-alert\" role=\"alert\">\n\n\t\t\t\t\t\t<span class=\"elementor-alert-title\">\u26a0\ufe0f \u0e2b\u0e21\u0e32\u0e22\u0e40\u0e2b\u0e15\u0e38<\/span>\n\t\t\t\n\t\t\t\t\t\t<span class=\"elementor-alert-description\">\u0e0a\u0e37\u0e48\u0e2d id \u0e04\u0e33\u0e19\u0e36\u0e07\u0e16\u0e36\u0e07\u0e15\u0e31\u0e27\u0e1e\u0e34\u0e21\u0e1e\u0e4c\u0e40\u0e25\u0e47\u0e01-\u0e43\u0e2b\u0e0d\u0e48\n\n\u0e15\u0e49\u0e2d\u0e07\u0e44\u0e21\u0e48\u0e02\u0e36\u0e49\u0e19\u0e15\u0e49\u0e19\u0e14\u0e49\u0e27\u0e22\u0e15\u0e31\u0e27\u0e40\u0e25\u0e02\n\n\u0e15\u0e49\u0e2d\u0e07\u0e44\u0e21\u0e48\u0e21\u0e35\u0e0a\u0e48\u0e2d\u0e07\u0e27\u0e48\u0e32\u0e07\u0e2b\u0e23\u0e37\u0e2d\u0e2d\u0e31\u0e01\u0e02\u0e23\u0e30\u0e1e\u0e34\u0e40\u0e28\u0e29<\/span>\n\t\t\t\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0a17f2a elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"0a17f2a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-64a821a elementor-widget elementor-widget-heading\" data-id=\"64a821a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u0e04\u0e27\u0e32\u0e21\u0e41\u0e15\u0e01\u0e15\u0e48\u0e32\u0e07\u0e23\u0e30\u0e2b\u0e27\u0e48\u0e32\u0e07 Class \u0e41\u0e25\u0e30 ID\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ab5c35b elementor-widget elementor-widget-text-editor\" data-id=\"ab5c35b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul>\n<li>Class (<code>.classname<\/code>) \u0e43\u0e0a\u0e49\u0e0b\u0e49\u0e33\u0e01\u0e31\u0e1a\u0e2b\u0e25\u0e32\u0e22\u0e2d\u0e07\u0e04\u0e4c\u0e1b\u0e23\u0e30\u0e01\u0e2d\u0e1a\u0e44\u0e14\u0e49<\/li>\n<li>ID (<code>#idname<\/code>) \u0e15\u0e49\u0e2d\u0e07\u0e40\u0e1b\u0e47\u0e19 <strong>\u0e40\u0e2d\u0e01\u0e25\u0e31\u0e01\u0e29\u0e13\u0e4c\u0e40\u0e09\u0e1e\u0e32\u0e30 (unique)<\/strong> \u0e43\u0e0a\u0e49\u0e44\u0e14\u0e49\u0e40\u0e1e\u0e35\u0e22\u0e07\u0e2b\u0e19\u0e36\u0e48\u0e07\u0e2d\u0e07\u0e04\u0e4c\u0e1b\u0e23\u0e30\u0e01\u0e2d\u0e1a\u0e15\u0e48\u0e2d\u0e2b\u0e19\u0e49\u0e32<\/li>\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e32b5bf elementor-widget elementor-widget-code-highlight\" data-id=\"e32b5bf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-highlight.default\">\n\t\t\t\t\t\t\t<div class=\"prismjs-default copy-to-clipboard \">\n\t\t\t<pre data-line=\"\" class=\"highlight-height language-markup line-numbers\">\n\t\t\t\t<code readonly=\"true\" class=\"language-markup\">\n\t\t\t\t\t<xmp><style>\r\n\/* Style the element with the id \"myHeader\" *\/\r\n#myHeader {\r\n  background-color: lightblue;\r\n  color: black;\r\n  padding: 40px;\r\n  text-align: center;\r\n}\r\n\r\n\/* Style all elements with the class name \"city\" *\/\r\n.city {\r\n  background-color: tomato;\r\n  color: white;\r\n  padding: 10px;\r\n} \r\n<\/style>\r\n<\/head>\r\n\r\n<h2>\u0e04\u0e27\u0e32\u0e21\u0e41\u0e15\u0e01\u0e15\u0e48\u0e32\u0e07\u0e23\u0e30\u0e2b\u0e27\u0e48\u0e32\u0e07 Class \u0e41\u0e25\u0e30 ID<\/h2>\r\n<p>\u0e0a\u0e37\u0e48\u0e2d Class \u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16\u0e43\u0e0a\u0e49\u0e01\u0e31\u0e1a\u0e2d\u0e07\u0e04\u0e4c\u0e1b\u0e23\u0e30\u0e01\u0e2d\u0e1a HTML \u0e2b\u0e25\u0e32\u0e22\u0e23\u0e32\u0e22\u0e01\u0e32\u0e23\u0e44\u0e14\u0e49 \u0e43\u0e19\u0e02\u0e13\u0e30\u0e17\u0e35\u0e48\u0e0a\u0e37\u0e48\u0e2d\u0e23\u0e2b\u0e31\u0e2a\u0e08\u0e30\u0e15\u0e49\u0e2d\u0e07\u0e43\u0e0a\u0e49\u0e42\u0e14\u0e22\u0e2d\u0e07\u0e04\u0e4c\u0e1b\u0e23\u0e30\u0e01\u0e2d\u0e1a HTML \u0e40\u0e14\u0e35\u0e22\u0e27\u0e40\u0e17\u0e48\u0e32\u0e19\u0e31\u0e49\u0e19\u0e20\u0e32\u0e22\u0e43\u0e19\u0e40\u0e1e\u0e08:<\/p>\r\n\r\n<!-- An element with a unique id -->\r\n<h1 id=\"myHeader\">My Cities<\/h1>\r\n\r\n<!-- Multiple elements with same class -->\r\n<h2 class=\"city\">London<\/h2>\r\n<p>London is the capital of England.<\/p>\r\n\r\n<h2 class=\"city\">Paris<\/h2>\r\n<p>Paris is the capital of France.<\/p>\r\n\r\n<h2 class=\"city\">Tokyo<\/h2>\r\n<p>Tokyo is the capital of Japan.<\/p><\/xmp>\n\t\t\t\t<\/code>\n\t\t\t<\/pre>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f1d0cde elementor-widget elementor-widget-button\" data-id=\"f1d0cde\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-size-sm\" role=\"button\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-external-link-alt\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M432,320H400a16,16,0,0,0-16,16V448H64V128H208a16,16,0,0,0,16-16V80a16,16,0,0,0-16-16H48A48,48,0,0,0,0,112V464a48,48,0,0,0,48,48H400a48,48,0,0,0,48-48V336A16,16,0,0,0,432,320ZM488,0h-128c-21.37,0-32.05,25.91-17,41l35.73,35.73L135,320.37a24,24,0,0,0,0,34L157.67,377a24,24,0,0,0,34,0L435.28,133.32,471,169c15,15,41,4.5,41-17V24A24,24,0,0,0,488,0Z\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">\u0e14\u0e39\u0e1c\u0e25\u0e25\u0e31\u0e1e\u0e18\u0e4c<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e8935ca elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"e8935ca\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6394354 elementor-widget elementor-widget-heading\" data-id=\"6394354\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u0e01\u0e32\u0e23\u0e43\u0e0a\u0e49 Bookmark \u0e01\u0e31\u0e1a ID \u0e41\u0e25\u0e30\u0e25\u0e34\u0e07\u0e01\u0e4c<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b945070 elementor-widget elementor-widget-text-editor\" data-id=\"b945070\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Bookmark \u0e43\u0e0a\u0e49\u0e40\u0e1e\u0e37\u0e48\u0e2d\u0e43\u0e2b\u0e49\u0e1c\u0e39\u0e49\u0e43\u0e0a\u0e49\u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16 \u201c\u0e02\u0e49\u0e32\u0e21\u0e44\u0e1b\u0e22\u0e31\u0e07\u0e2a\u0e48\u0e27\u0e19\u0e43\u0e14\u0e2a\u0e48\u0e27\u0e19\u0e2b\u0e19\u0e36\u0e48\u0e07\u0e02\u0e2d\u0e07\u0e2b\u0e19\u0e49\u0e32\u0e40\u0e27\u0e47\u0e1a\u201d \u0e44\u0e14\u0e49\u0e42\u0e14\u0e22\u0e15\u0e23\u0e07<br \/>\u0e40\u0e2b\u0e21\u0e32\u0e30\u0e01\u0e31\u0e1a\u0e2b\u0e19\u0e49\u0e32\u0e40\u0e27\u0e47\u0e1a\u0e17\u0e35\u0e48\u0e21\u0e35\u0e40\u0e19\u0e37\u0e49\u0e2d\u0e2b\u0e32\u0e22\u0e32\u0e27\u0e21\u0e32\u0e01<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a0a3824 elementor-widget elementor-widget-heading\" data-id=\"a0a3824\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">\u0e02\u0e31\u0e49\u0e19\u0e15\u0e2d\u0e19\u0e01\u0e32\u0e23\u0e2a\u0e23\u0e49\u0e32\u0e07 Bookmark<\/p>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-58cd8ca elementor-widget elementor-widget-text-editor\" data-id=\"58cd8ca\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>1. \u0e2a\u0e23\u0e49\u0e32\u0e07\u0e1a\u0e38\u0e4a\u0e01\u0e21\u0e32\u0e23\u0e4c\u0e01 \u0e14\u0e49\u0e27\u0e22 <code>id<\/code><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-34be4ba elementor-widget elementor-widget-code-highlight\" data-id=\"34be4ba\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-highlight.default\">\n\t\t\t\t\t\t\t<div class=\"prismjs-default copy-to-clipboard \">\n\t\t\t<pre data-line=\"\" class=\"highlight-height language-html line-numbers\">\n\t\t\t\t<code readonly=\"true\" class=\"language-html\">\n\t\t\t\t\t<xmp><h2 id=\"C4\">Chapter 4<\/h2>\r\n<\/xmp>\n\t\t\t\t<\/code>\n\t\t\t<\/pre>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1bf6db9 elementor-widget elementor-widget-text-editor\" data-id=\"1bf6db9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t2. \u0e2a\u0e23\u0e49\u0e32\u0e07\u0e25\u0e34\u0e07\u0e01\u0e4c \u0e44\u0e1b\u0e22\u0e31\u0e07\u0e1a\u0e38\u0e4a\u0e01\u0e21\u0e32\u0e23\u0e4c\u0e01\u0e19\u0e31\u0e49\u0e19\u0e43\u0e19\u0e2b\u0e19\u0e49\u0e32\u0e40\u0e14\u0e35\u0e22\u0e27\u0e01\u0e31\u0e19\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2f0dac9 elementor-widget elementor-widget-code-highlight\" data-id=\"2f0dac9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-highlight.default\">\n\t\t\t\t\t\t\t<div class=\"prismjs-default copy-to-clipboard \">\n\t\t\t<pre data-line=\"\" class=\"highlight-height language-html line-numbers\">\n\t\t\t\t<code readonly=\"true\" class=\"language-html\">\n\t\t\t\t\t<xmp><a href=\"#C4\">Jump to Chapter 4<\/a>\r\n<\/xmp>\n\t\t\t\t<\/code>\n\t\t\t<\/pre>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8dd162a elementor-widget elementor-widget-button\" data-id=\"8dd162a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/kb.hostatom.com\/lesson\/html\/tryhtml?filename=id_bookmark\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-external-link-alt\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M432,320H400a16,16,0,0,0-16,16V448H64V128H208a16,16,0,0,0,16-16V80a16,16,0,0,0-16-16H48A48,48,0,0,0,0,112V464a48,48,0,0,0,48,48H400a48,48,0,0,0,48-48V336A16,16,0,0,0,432,320ZM488,0h-128c-21.37,0-32.05,25.91-17,41l35.73,35.73L135,320.37a24,24,0,0,0,0,34L157.67,377a24,24,0,0,0,34,0L435.28,133.32,471,169c15,15,41,4.5,41-17V24A24,24,0,0,0,488,0Z\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">\u0e14\u0e39\u0e1c\u0e25\u0e25\u0e31\u0e1e\u0e18\u0e4c<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2123906 elementor-widget elementor-widget-text-editor\" data-id=\"2123906\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>\u0e2b\u0e23\u0e37\u0e2d\u0e40\u0e1e\u0e34\u0e48\u0e21\u0e25\u0e34\u0e07\u0e01\u0e4c\u0e44\u0e1b\u0e22\u0e31\u0e07\u0e1a\u0e38\u0e4a\u0e01\u0e21\u0e32\u0e23\u0e4c\u0e01\u0e2b\u0e19\u0e49\u0e32\u0e2d\u0e37\u0e48\u0e19\u0e44\u0e14\u0e49\u0e14\u0e49\u0e27\u0e22 :<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4967ee4 elementor-widget elementor-widget-code-highlight\" data-id=\"4967ee4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-highlight.default\">\n\t\t\t\t\t\t\t<div class=\"prismjs-default copy-to-clipboard \">\n\t\t\t<pre data-line=\"\" class=\"highlight-height language-html line-numbers\">\n\t\t\t\t<code readonly=\"true\" class=\"language-html\">\n\t\t\t\t\t<xmp><a href=\"html_demo.html#C4\">Jump to Chapter 4<\/a>\r\n<\/xmp>\n\t\t\t\t<\/code>\n\t\t\t<\/pre>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a53e8a9 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"a53e8a9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1c75639 elementor-widget elementor-widget-heading\" data-id=\"1c75639\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u0e01\u0e32\u0e23\u0e43\u0e0a\u0e49 Attribute id \u0e43\u0e19 JavaScript<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-de33b95 elementor-widget elementor-widget-text-editor\" data-id=\"de33b95\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\tJavaScript \u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16\u0e40\u0e02\u0e49\u0e32\u0e16\u0e36\u0e07\u0e41\u0e25\u0e30\u0e08\u0e31\u0e14\u0e01\u0e32\u0e23 Element \u0e14\u0e49\u0e27\u0e22 <code>id<\/code> \u0e44\u0e14\u0e49\u0e42\u0e14\u0e22\u0e43\u0e0a\u0e49\u0e04\u0e33\u0e2a\u0e31\u0e48\u0e07 <code>document.getElementById()<\/code>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c78a870 elementor-widget elementor-widget-code-highlight\" data-id=\"c78a870\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-highlight.default\">\n\t\t\t\t\t\t\t<div class=\"prismjs-default copy-to-clipboard \">\n\t\t\t<pre data-line=\"\" class=\"highlight-height language-javascript line-numbers\">\n\t\t\t\t<code readonly=\"true\" class=\"language-javascript\">\n\t\t\t\t\t<xmp><script>\r\nfunction displayResult() {\r\n  document.getElementById(\"myHeader\").innerHTML = \"Have a nice day!\";\r\n}\r\n<\/script><\/xmp>\n\t\t\t\t<\/code>\n\t\t\t<\/pre>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-54dd2a4 elementor-widget elementor-widget-button\" data-id=\"54dd2a4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/kb.hostatom.com\/lesson\/html\/tryhtml?filename=id_js\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-external-link-alt\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M432,320H400a16,16,0,0,0-16,16V448H64V128H208a16,16,0,0,0,16-16V80a16,16,0,0,0-16-16H48A48,48,0,0,0,0,112V464a48,48,0,0,0,48,48H400a48,48,0,0,0,48-48V336A16,16,0,0,0,432,320ZM488,0h-128c-21.37,0-32.05,25.91-17,41l35.73,35.73L135,320.37a24,24,0,0,0,0,34L157.67,377a24,24,0,0,0,34,0L435.28,133.32,471,169c15,15,41,4.5,41-17V24A24,24,0,0,0,488,0Z\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">\u0e14\u0e39\u0e1c\u0e25\u0e25\u0e31\u0e1e\u0e18\u0e4c<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fe76dc0 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"fe76dc0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-337da48 elementor-widget elementor-widget-heading\" data-id=\"337da48\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u0e2a\u0e23\u0e38\u0e1b<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c1412e6 elementor-widget elementor-widget-text-editor\" data-id=\"c1412e6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul>\n<li><code>id<\/code> \u0e43\u0e0a\u0e49\u0e40\u0e1e\u0e37\u0e48\u0e2d\u0e23\u0e30\u0e1a\u0e38\u0e23\u0e2b\u0e31\u0e2a\u0e40\u0e09\u0e1e\u0e32\u0e30\u0e2a\u0e33\u0e2b\u0e23\u0e31\u0e1a\u0e2d\u0e07\u0e04\u0e4c\u0e1b\u0e23\u0e30\u0e01\u0e2d\u0e1a HTML<\/li>\n<li>\u0e04\u0e48\u0e32\u0e02\u0e2d\u0e07 <code>id<\/code> \u0e15\u0e49\u0e2d\u0e07\u0e44\u0e21\u0e48\u0e0b\u0e49\u0e33\u0e01\u0e31\u0e19\u0e20\u0e32\u0e22\u0e43\u0e19\u0e2b\u0e19\u0e49\u0e32 HTML \u0e40\u0e14\u0e35\u0e22\u0e27\u0e01\u0e31\u0e19<\/li>\n<li><code>id<\/code> \u0e16\u0e39\u0e01\u0e43\u0e0a\u0e49\u0e17\u0e31\u0e49\u0e07\u0e43\u0e19 CSS \u0e41\u0e25\u0e30 JavaScript \u0e40\u0e1e\u0e37\u0e48\u0e2d\u0e08\u0e31\u0e14\u0e23\u0e39\u0e1b\u0e41\u0e1a\u0e1a\u0e2b\u0e23\u0e37\u0e2d\u0e40\u0e25\u0e37\u0e2d\u0e01 Element \u0e40\u0e09\u0e1e\u0e32\u0e30<\/li>\n<li>\u0e0a\u0e37\u0e48\u0e2d <code>id<\/code> \u0e04\u0e33\u0e19\u0e36\u0e07\u0e16\u0e36\u0e07\u0e15\u0e31\u0e27\u0e1e\u0e34\u0e21\u0e1e\u0e4c\u0e40\u0e25\u0e47\u0e01\u2013\u0e43\u0e2b\u0e0d\u0e48\u00a0<\/li>\n<li><code>id<\/code> \u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16\u0e43\u0e0a\u0e49\u0e2a\u0e23\u0e49\u0e32\u0e07\u0e1a\u0e38\u0e4a\u0e01\u0e21\u0e32\u0e23\u0e4c\u0e01\u0e20\u0e32\u0e22\u0e43\u0e19\u0e2b\u0e19\u0e49\u0e32\u0e40\u0e27\u0e47\u0e1a\u0e44\u0e14\u0e49<\/li>\n<li>JavaScript \u0e40\u0e02\u0e49\u0e32\u0e16\u0e36\u0e07 Element \u0e42\u0e14\u0e22\u0e43\u0e0a\u0e49 <code>getElementById()<\/code><\/li>\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Attribute id \u0e43\u0e0a\u0e49\u0e40\u0e1e\u0e37\u0e48\u0e2d\u0e23\u0e30\u0e1a\u0e38 \u0e23\u0e2b\u0e31\u0e2a\u0e40\u0e09\u0e1e\u0e32\u0e30 (Unique Identifier) \u0e2a\u0e33\u0e2b\u0e23\u0e31\u0e1a\u0e2d\u0e07\u0e04\u0e4c\u0e1b\u0e23\u0e30\u0e01\u0e2d\u0e1a HTML \u26a0\ufe0f \u0e43\u0e19\u0e2b\u0e19\u0e49\u0e32 HTML \u0e40\u0e14\u0e35\u0e22\u0e27\u0e01\u0e31\u0e19 \u0e44\u0e21\u0e48\u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16\u0e21\u0e35\u0e2b\u0e25\u0e32\u0e22\u0e2d\u0e07\u0e04\u0e4c\u0e1b\u0e23\u0e30\u0e01\u0e2d\u0e1a\u0e17\u0e35\u0e48\u0e43\u0e0a\u0e49 id \u0e40\u0e14\u0e35\u0e22\u0e27\u0e01\u0e31\u0e19\u0e44\u0e14\u0e49 \u0e01\u0e32\u0e23\u0e43\u0e0a\u0e49 Attribute id id 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