{"id":107259,"date":"2025-05-08T02:35:11","date_gmt":"2025-05-07T21:05:11","guid":{"rendered":"https:\/\/www.mygreatlearning.com\/blog\/?page_id=107259"},"modified":"2025-05-08T00:27:20","modified_gmt":"2025-05-07T18:57:20","slug":"html-editor-tool","status":"publish","type":"page","link":"https:\/\/www.mygreatlearning.com\/blog\/html-editor-tool\/","title":{"rendered":"Online HTML Compiler"},"content":{"rendered":"\n<style>\n\n  .html-course-cta-section {\n    width: 100%;\n    padding: 1rem;\n    box-sizing: border-box;\n  }\n\n  .html-course-cta-card {\n    max-width: 600px !important;\n    height: 120px; \/* Changed height to min-height for better flexibility *\/\n    margin: 0 auto;\n    background-color: #ffffff;\nborder: 1px solid #e5e7eb;\n    border-radius: 0.5rem;\n    overflow: hidden;\n  }\n\n  .html-course-cta-content {\n    display: flex;\n    align-items: center;\n    justify-content: space-between;\n    height: 100%;\n    padding: 2rem; \/* Unified padding *\/\ngap: 2px;\n  }\n\n  .html-course-cta-left {\n    display: flex;\n    align-items: center;\n    gap: 1rem;\n  }\n\n  .html-course-cta-icon {\n    width: 2rem;\n    height: 2rem;\n    color: hsl(217.2, 91.2%, 59.8%);\n  }\n\n  .html-course-cta-text {\n    display: flex;\n    flex-direction: column;\n  }\n\n  .html-course-cta-title {\n    font-size: 1.25rem;\n    font-weight: 700;\n    color: #111827;\n    line-height: 1.2;\n    margin-bottom: 5px !important; \/* Reset margins *\/\n  }\n\n  .html-course-cta-subtitle {\n    font-size: 0.95rem;\n    margin-bottom: 0 !important; \/* Reset margins *\/\n  }\n\n  .html-course-cta-button-wrapper {\n    display: flex;\n    gap: 0.5rem;\n    flex-shrink: 0;\njustify-content: center;\n  }\n\n  \/* Updated to work with anchor tag *\/\n  .html-course-cta-button {\n    display: inline-flex;\n    align-items: center;\n    justify-content: center;\n    gap: 0.5rem;\n    white-space: nowrap;\n    border-radius: 0.375rem;\n    font-size: 0.875rem;\n    font-weight: 600;\n    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);\n    cursor: pointer;\n    height: 2.25rem;\n    padding: 0 0.75rem;\n    background-color: hsl(24.6, 95%, 53.1%);\n    color: #ffffff;\n    border: none;\n    text-decoration: none; \/* Added to remove underline from link *\/\nmax-width: 200px;\n  }\n\n  .html-course-cta-button:hover {\n    background-color: hsl(24.6, 95%, 48%);\n    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);\n    transform: scale(1.05);\n  }\n\n  .html-course-cta-button:active {\n    transform: scale(0.98);\n  }\n\n  \/* Responsive *\/\n  @media (max-width: 640px) {\n    .html-course-cta-card {\n      height: auto;\n    }\n\n    .html-course-cta-content {\n      flex-direction: column;\n      align-items: flex-start; \/* Align left on mobile *\/\n      padding: 1.5rem;\ngap: 15px;\n    }\n\n    .html-course-cta-left {\n      width: 100%;\n    }\n\n    .html-course-cta-button-wrapper {\n      width: 100%;\n    }\n\n    .html-course-cta-button {\n      width: 100%;\n    }\n  }\n<\/style>\n\n<section class=\"html-course-cta-section\">\n  <div class=\"html-course-cta-card\">\n    <div class=\"html-course-cta-content\">\n      <div class=\"html-course-cta-left\">\n        <div class=\"html-course-cta-text\">\n          <p class=\"html-course-cta-title\">Frontend Web Development Course<\/p>\n          <p class=\"html-course-cta-subtitle\">Learn Front-End Development with HTML, CSS, and JavaScript, and Build Responsive Websites.<\/p>\n        <\/div>\n      <\/div>\n\n      <div class=\"html-course-cta-button-wrapper\">\n        <!-- Changed button to anchor tag with href -->\n        <a href=\"https:\/\/www.mygreatlearning.com\/academy\/premium\/frontend-web-development-essentials?utm_source=blog\" class=\"html-course-cta-button\" target=\"_blank\" rel=\"noopener noreferrer\">\n          Enroll Now\n        <\/a>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/section>\n\n\n\n<script src=\"https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/ace\/1.4.12\/ace.min.js\"><\/script>\n    <style>\n        \/* --- Original Compiler 1 Styles (Unchanged) --- *\/\n        .live-editor-container {\n            --live-editor-font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;\n            --live-editor-editor-font-family: 'Courier New', Courier, monospace;\n            --live-editor-bg-color-light: #f4f7f9;\n            --live-editor-text-color-light: #2c3e50;\n            --live-editor-editor-bg-light: #ffffff;\n            --live-editor-preview-bg-light: #ffffff;\n            --live-editor-border-color-light: #d1d5db;\n            --live-editor-toolbar-bg-light: #e9ecef;\n            --live-editor-button-bg-light: #ffffff;\n            --live-editor-button-text-light: #34495e;\n            --live-editor-button-hover-bg-light: #f8f9fa;\n            --live-editor-button-active-bg-light: #e9ecef;\n            --live-editor-accent-color-light: #3498db;\n            --live-editor-shadow-color-light: rgba(0, 0, 0, 0.1);\n            --live-editor-line-number-color-light: #95a5a6;\n\n            --live-editor-bg-color-dark: #2c3e50;\n            --live-editor-text-color-dark: #ffffff;\n            --live-editor-editor-bg-dark: #34495e;\n            --live-editor-preview-bg-dark: #34495e;\n            --live-editor-border-color-dark: #566573;\n            --live-editor-toolbar-bg-dark: #3a5064;\n            --live-editor-button-bg-dark: #4a657c;\n            --live-editor-button-text-dark: #ffffff;\n            --live-editor-button-hover-bg-dark: #527089;\n            --live-editor-button-active-bg-dark: #3e5a70;\n            --live-editor-accent-color-dark: #5dade2;\n            --live-editor-shadow-color-dark: rgba(0, 0, 0, 0.3);\n            --live-editor-line-number-color-dark: #bdc3c7;\n\n            --live-editor-bg-color: var(--live-editor-bg-color-light);\n            --live-editor-text-color: var(--live-editor-text-color-light);\n            --live-editor-editor-bg: var(--live-editor-editor-bg-light);\n            --live-editor-preview-bg: var(--live-editor-preview-bg-light);\n            --live-editor-border-color: var(--live-editor-border-color-light);\n            --live-editor-toolbar-bg: var(--live-editor-toolbar-bg-light);\n            --live-editor-button-bg: var(--live-editor-button-bg-light);\n            --live-editor-button-text: var(--live-editor-button-text-light);\n            --live-editor-button-hover-bg: var(--live-editor-button-hover-bg-light);\n            --live-editor-button-active-bg: var(--live-editor-button-active-bg-light);\n            --live-editor-accent-color: var(--live-editor-accent-color-light);\n            --live-editor-shadow-color: var(--live-editor-shadow-color-light);\n            --live-editor-line-number-color: var(--live-editor-line-number-color-light);\n\n            --live-editor-editor-font-size: 16px;\n            --live-editor-toolbar-height: 60px;\n            --live-editor-footer-height: 30px;\n\n            font-family: var(--live-editor-font-family);\n            background-color: var(--live-editor-bg-color);\n            color: var(--live-editor-text-color);\n            display: flex;\n            flex-direction: column;\n            height: 100vh;\n            width: 100%;\n            overflow: hidden;\n            transition: background-color 0.3s, color 0.3s;\n        }\n\n        .live-editor-container.live-editor-dark-mode {\n            --live-editor-bg-color: var(--live-editor-bg-color-dark);\n            --live-editor-text-color: var(--live-editor-text-color-dark);\n            --live-editor-editor-bg: var(--live-editor-editor-bg-dark);\n            --live-editor-preview-bg: var(--live-editor-preview-bg-dark);\n            --live-editor-border-color: var(--live-editor-border-color-dark);\n            --live-editor-toolbar-bg: var(--live-editor-toolbar-bg-dark);\n            --live-editor-button-bg: var(--live-editor-button-bg-dark);\n            --live-editor-button-text: var(--live-editor-button-text-dark);\n            --live-editor-button-hover-bg: var(--live-editor-button-hover-bg-dark);\n            --live-editor-button-active-bg: var(--live-editor-button-active-bg-dark);\n            --live-editor-accent-color: var(--live-editor-accent-color-dark);\n            --live-editor-shadow-color: var(--live-editor-shadow-color-dark);\n            --live-editor-line-number-color: var(--live-editor-line-number-color-dark);\n        }\n\n        .live-editor-toolbar {\n            display: flex;\n            align-items: center;\n            padding: 0 10px;\n            height: var(--live-editor-toolbar-height);\n            background-color: var(--live-editor-toolbar-bg);\n            border-bottom: 1px solid var(--live-editor-border-color);\n            flex-wrap: wrap;\n            gap: 8px;\n            transition: background-color 0.3s, border-color 0.3s;\n            flex-shrink: 0;\n            min-width: 100%;\n            overflow-x: hidden;\n        }\n\n        .live-editor-toolbar-group {\n            display: flex;\n            gap: 8px;\n        }\n\n        .live-editor-toolbar-group.live-editor-right {\n            margin-left: auto;\n        }\n\n        .live-editor-toolbar button {\n            background-color: var(--live-editor-button-bg);\n            color: var(--live-editor-button-text);\n            border: 1px solid var(--live-editor-border-color);\n            padding: 8px 12px;\n            border-radius: 6px;\n            cursor: pointer;\n            font-size: 14px;\n            transition: background-color 0.2s, border-color 0.2s, box-shadow 0.2s, color 0.2s;\n            display: flex;\n            align-items: center;\n            gap: 5px;\n            white-space: nowrap;\n        }\n        \n        .live-editor-toolbar button.active {\n            background-color: var(--live-editor-accent-color);\n            color: white;\n            border-color: var(--live-editor-accent-color);\n        }\n\n        .live-editor-toolbar button:hover {\n            background-color: var(--live-editor-button-hover-bg);\n            border-color: var(--live-editor-accent-color);\n            box-shadow: 0 2px 4px var(--live-editor-shadow-color);\n        }\n\n        .live-editor-toolbar button:active {\n            background-color: var(--live-editor-button-active-bg);\n            box-shadow: inset 0 1px 3px var(--live-editor-shadow-color);\n        }\n\n        .live-editor-toolbar button .live-editor-icon {\n            font-size: 1.1em;\n        }\n\n        .live-editor-main-container {\n            display: flex;\n            flex-grow: 1;\n            overflow: hidden;\n            height: calc(100vh - var(--live-editor-toolbar-height) - var(--live-editor-footer-height) - 16px);\n            gap: 0;\n            min-width: 100%;\n            position: relative;\n        }\n\n        .live-editor-container:fullscreen .live-editor-main-container,\n        .live-editor-container:-webkit-full-screen .live-editor-main-container,\n        .live-editor-container:-moz-full-screen .live-editor-main-container,\n        .live-editor-container:-ms-fullscreen .live-editor-main-container {\n            height: calc(100vh - var(--live-editor-toolbar-height) - var(--live-editor-footer-height));\n            padding: 0;\n        }\n\n        .live-editor-editor-wrapper,\n        .live-editor-preview-wrapper {\n            display: flex;\n            flex-direction: column;\n            background-color: var(--live-editor-editor-bg);\n            border: 1px solid var(--live-editor-border-color);\n            border-radius: 8px;\n            box-shadow: 0 4px 6px var(--live-editor-shadow-color);\n            overflow: hidden;\n            transition: background-color 0.3s, border-color 0.3s;\n            position: relative;\n            flex: 1;\n            min-width: 150px;\n        }\n\n        .live-editor-container:fullscreen .live-editor-editor-wrapper,\n        .live-editor-container:fullscreen .live-editor-preview-wrapper,\n        .live-editor-container:-webkit-full-screen .live-editor-editor-wrapper,\n        .live-editor-container:-webkit-full-screen .live-editor-preview-wrapper,\n        .live-editor-container:-moz-full-screen .live-editor-editor-wrapper,\n        .live-editor-container:-moz-full-screen .live-editor-preview-wrapper,\n        .live-editor-container:-ms-fullscreen .live-editor-editor-wrapper,\n        .live-editor-container:-ms-fullscreen .live-editor-preview-wrapper {\n            border-radius: 0;\n            border: none;\n            box-shadow: none;\n        }\n\n        .live-editor-divider {\n            width: 8px;\n            background-color: var(--live-editor-border-color);\n            cursor: col-resize;\n            transition: background-color 0.3s;\n            flex-shrink: 0;\n            z-index: 10;\n        }\n\n        .live-editor-container:fullscreen .live-editor-divider,\n        .live-editor-container:-webkit-full-screen .live-editor-divider,\n        .live-editor-container:-moz-full-screen .live-editor-divider,\n        .live-editor-container:-ms-fullscreen .live-editor-divider {\n            display: none;\n        }\n\n        .live-editor-divider:hover {\n            background-color: var(--live-editor-accent-color);\n        }\n\n        .live-editor-editor-pane {\n            display: flex;\n            flex-grow: 1;\n            position: relative;\n            overflow: hidden;\n            background-color: var(--live-editor-editor-bg);\n            transition: background-color 0.3s;\n        }\n        \n        .live-editor-html-editor {\n            flex-grow: 1;\n            height: 100%;\n            width: 100%;\n        }\n\n        .live-editor-preview-frame {\n            width: 100%;\n            height: 100%;\n            border: none;\n            background-color: var(--live-editor-preview-bg);\n            transition: background-color 0.3s;\n        }\n\n        .live-editor-container:fullscreen .live-editor-preview-frame,\n        .live-editor-container:-webkit-full-screen .live-editor-preview-frame,\n        .live-editor-container:-moz-full-screen .live-editor-preview-frame,\n        .live-editor-container:-ms-fullscreen .live-editor-preview-frame {\n            border-radius: 0;\n        }\n\n        .live-editor-footer-info {\n            display: flex;\n            justify-content: flex-end;\n            padding: 0 10px;\n            height: var(--live-editor-footer-height);\n            align-items: center;\n            font-size: 12px;\n            color: var(--live-editor-text-color);\n            background-color: var(--live-editor-toolbar-bg);\n            border-top: 1px solid var(--live-editor-border-color);\n            gap: 15px;\n            transition: background-color 0.3s, color 0.3s, border-color 0.3s;\n            flex-shrink: 0;\n            min-width: 100%;\n        }\n\n        .live-editor-container:fullscreen .live-editor-footer-info,\n        .live-editor-container:-webkit-full-screen .live-editor-footer-info,\n        .live-editor-container:-moz-full-screen .live-editor-footer-info,\n        .live-editor-container:-ms-fullscreen .live-editor-footer-info {\n            display: flex;\n        }\n        \n        \/* --- Styles for New Features (Compiler 2) --- *\/\n        .live-editor-file-tabs {\n            display: flex;\n            border-bottom: 1px solid var(--live-editor-border-color);\n            flex-shrink: 0;\n            overflow-x: auto;\n        }\n        .live-editor-file-tab {\n            padding: 10px 15px;\n            cursor: pointer;\n            border-right: 1px solid var(--live-editor-border-color);\n            background-color: var(--live-editor-button-bg);\n            color: var(--live-editor-button-text);\n            font-size: 14px;\n            white-space: nowrap;\n            transition: background-color 0.2s;\n        }\n        .live-editor-file-tab:hover {\n            background-color: var(--live-editor-button-hover-bg);\n        }\n        .live-editor-file-tab.active {\n            background-color: var(--live-editor-editor-bg);\n            color: var(--live-editor-accent-color);\n            font-weight: bold;\n            border-bottom: 2px solid var(--live-editor-accent-color);\n            margin-bottom: -1px;\n        }\n        .live-editor-editor-instance {\n            display: none;\n            width: 100%;\n            height: 100%;\n        }\n        .live-editor-editor-instance.active {\n            display: block;\n        }\n\n        .live-editor-inspector-popup {\n            display: none;\n            position: absolute;\n            top: 20px;\n            left: 20px;\n            width: 350px;\n            max-height: calc(100% - 40px);\n            background: var(--live-editor-editor-bg);\n            color: var(--live-editor-text-color);\n            border: 1px solid var(--live-editor-border-color);\n            border-radius: 8px;\n            box-shadow: 0 10px 30px var(--live-editor-shadow-color);\n            z-index: 500;\n            flex-direction: column;\noverflow-y: auto;\n        }\n        .live-editor-inspector-popup.active { display: flex; }\n        .live-editor-inspector-header {\n            display: flex; justify-content: space-between; align-items: center;\n            padding: 8px 12px;\n            background: var(--live-editor-toolbar-bg);\n            border-bottom: 1px solid var(--live-editor-border-color);\n            flex-shrink: 0;\n        }\n        .live-editor-inspector-header h4 { font-size: 1rem; margin: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;}\n        .live-editor-inspector-close { font-size: 1.4rem; cursor: pointer; background:none; border:none; color: var(--live-editor-text-color); }\n        .live-editor-inspector-close:hover { color: #ef4444; }\n        .live-editor-inspector-content { padding: 15px; overflow-y: auto; font-size: 13px; font-family: var(--live-editor-editor-font-family); }\n        .live-editor-inspector-content h5 { font-size: 0.9rem; color: var(--live-editor-accent-color); margin-top: 15px; margin-bottom: 8px; border-bottom: 1px solid var(--live-editor-border-color); padding-bottom: 5px; }\n        .live-editor-inspector-content h5:first-child { margin-top: 0; }\n        .live-editor-inspector-content pre { white-space: pre-wrap; word-break: break-all; background: var(--live-editor-bg-color); padding: 10px; border-radius: 6px; }\n        .live-editor-inspector-content code { color: inherit; }\n\n        @media (max-width: 768px) {\n            .live-editor-main-container {\n                flex-direction: column;\n                height: calc(100vh - var(--live-editor-toolbar-height) - var(--live-editor-footer-height) - 8px);\n                gap: 8px;\n            }\n\n            .live-editor-container:fullscreen .live-editor-main-container,\n            .live-editor-container:-webkit-full-screen .live-editor-main-container,\n            .live-editor-container:-moz-full-screen .live-editor-main-container,\n            .live-editor-container:-ms-fullscreen .live-editor-main-container {\n                height: calc(100vh - var(--live-editor-toolbar-height) - var(--live-editor-footer-height));\n            }\n\n            .live-editor-editor-wrapper,\n            .live-editor-preview-wrapper {\n                height: 50%;\n                min-height: 150px;\n                width: auto;\n                flex: none;\n            }\n\n            .live-editor-divider { display: none; }\n            .live-editor-toolbar { height: auto; min-height: var(--live-editor-toolbar-height); padding: 8px; flex-wrap: nowrap; overflow-x: auto; width: 100%; }\n            .live-editor-toolbar-group { flex-direction: row; width: auto; flex-shrink: 0; }\n            .live-editor-toolbar-group.live-editor-right { margin-left: auto; width: auto; flex-shrink: 0; }\n            .live-editor-toolbar button { font-size: 13px; width: auto; flex-shrink: 0; }\n        }\n\n        @media (max-width: 480px) {\n            .live-editor-toolbar { padding: 8px; padding-right: 15px; }\n            .live-editor-toolbar-group.live-editor-right { margin-left: 0; }\n            .live-editor-toolbar button { width: auto; justify-content: flex-start; }\n        }\n    <\/style>\n\n    <div class=\"live-editor-container\" id=\"live-editor-container\">\n        <div class=\"live-editor-toolbar\">\n            <div class=\"live-editor-toolbar-group\">\n                <button id=\"runBtn\" title=\"Run Code (Ctrl+Enter)\"><span class=\"live-editor-icon\">\u25b6\ufe0f<\/span> Run<\/button>\n                <button id=\"downloadBtn\" title=\"Download HTML\"><span class=\"live-editor-icon\">\ud83d\udcbe<\/span> Download<\/button>\n                <button id=\"copyBtn\" title=\"Copy HTML\"><span class=\"live-editor-icon\">\ud83d\udccb<\/span> Copy<\/button>\n            <\/div>\n            <div class=\"live-editor-toolbar-group live-editor-right\">\n                <button id=\"inspectorBtn\" title=\"Inspect Element\"><span class=\"live-editor-icon\">\ud83d\uddb1\ufe0f<\/span> Inspect<\/button>\n                <button id=\"fullscreenBtn\" title=\"Enter Fullscreen\"><span class=\"live-editor-icon\">\u26f6<\/span> Fullscreen<\/button>\n                <button id=\"themeToggleBtn\" title=\"Toggle Theme\"><span id=\"theme-toggle-icon\" class=\"live-editor-icon\">\ud83c\udf19<\/span> Theme<\/button>\n            <\/div>\n        <\/div>\n        <div class=\"live-editor-main-container\" id=\"liveEditorMainContainer\">\n            <div class=\"live-editor-editor-wrapper\" id=\"liveEditorEditorWrapper\">\n                <div class=\"live-editor-file-tabs\" id=\"fileTabs\"><\/div>\n                <div class=\"live-editor-editor-pane\" id=\"editorPane\">\n                    <\/div>\n            <\/div>\n            <div class=\"live-editor-divider\" id=\"liveEditorDivider\"><\/div>\n            <div class=\"live-editor-preview-wrapper\" id=\"liveEditorPreviewWrapper\">\n<iframe id=\"liveEditorPreviewFrame\" class=\"live-editor-preview-frame\" title=\"HTML Preview\" sandbox=\"allow-scripts allow-same-origin allow-modals allow-forms allow-popups\"><\/iframe>                <div class=\"live-editor-inspector-popup\" id=\"inspectorPopup\"><\/div>\n            <\/div>\n        <\/div>\n        <div class=\"live-editor-footer-info\">\n            <span id=\"liveEditorScreenSize\">Size: 0x0<\/span>\n            <span id=\"liveEditorCharCount\">Chars: 0<\/span>\n            <span id=\"liveEditorWordCount\">Words: 0<\/span>\n        <\/div>\n    <\/div>\n    <script>\n        class EnhancedLiveEditor {\n            constructor() {\n                this.files = new Map();\n                this.editors = new Map();\n                this.currentFile = null;\n                this.isResizing = false;\n                this.isInspectorActive = false;\n                this.highlightedElement = null;\n\n                this.cacheDOMElements();\n                this.initializeDefaultFiles();\n                this.bindEvents();\n                this.runCode();\n            }\n\n            cacheDOMElements() {\n                this.container = document.getElementById('live-editor-container');\n                this.fileTabsContainer = document.getElementById('fileTabs');\n                this.editorPane = document.getElementById('editorPane');\n                this.previewFrame = document.getElementById('liveEditorPreviewFrame');\n                this.inspectorPopup = document.getElementById('inspectorPopup');\n            }\n\n            initializeDefaultFiles() {\n                const defaultFiles = new Map([\n                    ['index.html', { type: 'html', content: `<!DOCTYPE html>\\n<html lang=\"en\">\\n<head>\\n    <meta charset=\"UTF-8\">\\n    <title>My Web Page<\/title>\\n    <link rel=\"stylesheet\" href=\"style.css\">\\n<\/head>\\n<body>\\n    <h1 id=\"hello-world\">Hello, World!<\/h1>\\n    <p>Edit this code and click Run.<\/p>\\n    <script src=\"script.js\"><\\\/script>\\n<\/body>\\n<\/html>` }],\n                    ['style.css', { type: 'css', content: `body {\\n  font-family: sans-serif;\\n  background-color: #f0f0f0;\\n  color: #333;\\n  padding: 20px;\\n}\\nh1 {\\n  color: #007bff;\\n}` }],\n                    ['script.js', { type: 'js', content: `console.log(\"Hello from script.js!\");\\n\\nconst h1 = document.querySelector('h1');\\nh1.addEventListener('click', () => {\\n  alert('You clicked the heading!');\\n});` }]\n                ]);\n\n                defaultFiles.forEach((fileData, fileName) => {\n                    this.addFile(fileName, fileData.type, fileData.content);\n                });\n\n                this.switchFile('index.html');\n                this.updateCounts();\n                this.updateScreenSize();\n            }\n\n            addFile(fileName, type, content) {\n                this.files.set(fileName, { type, content });\n\n                \/\/ Create Tab\n                const tab = document.createElement('div');\n                tab.className = 'live-editor-file-tab';\n                tab.dataset.file = fileName;\n                tab.textContent = fileName;\n                tab.onclick = () => this.switchFile(fileName);\n                this.fileTabsContainer.appendChild(tab);\n\n                \/\/ Create Editor Instance\n                const editorDiv = document.createElement('div');\n                editorDiv.className = 'live-editor-editor-instance';\n                editorDiv.id = `editor-${fileName.replace('.', '-')}`;\n                this.editorPane.appendChild(editorDiv);\n\n                const editor = ace.edit(editorDiv.id);\n                editor.setTheme(\"ace\/theme\/textmate\");\n                editor.session.setMode(`ace\/mode\/${type}`);\n                editor.setOptions({\n                    fontSize: \"16px\",\n                    showPrintMargin: false,\n                    highlightActiveLine: true,\n                    tabSize: 2,\n                    useSoftTabs: true,\n                    wrap: true\n                });\n                editor.setValue(content, -1);\n                editor.session.on('change', () => {\n                    this.files.get(fileName).content = editor.getValue();\n                    this.debounce(this.updateCounts.bind(this), 200)();\n                });\n                this.editors.set(fileName, editor);\n            }\n\n            switchFile(fileName) {\n                this.currentFile = fileName;\n                \/\/ Update tabs\n                this.container.querySelectorAll('.live-editor-file-tab').forEach(t => t.classList.toggle('active', t.dataset.file === fileName));\n                \/\/ Update editor panels\n                this.container.querySelectorAll('.live-editor-editor-instance').forEach(p => p.classList.toggle('active', p.id.includes(fileName.replace('.', '-'))));\n                \n                const editor = this.editors.get(fileName);\n                if(editor) {\n                    editor.focus();\n                    this.updateCounts();\n                }\n            }\n\n            bindEvents() {\n                \/\/ Toolbar Buttons\n                document.getElementById('runBtn').addEventListener('click', () => this.runCode());\n                document.getElementById('downloadBtn').addEventListener('click', () => this.downloadCode());\n                document.getElementById('copyBtn').addEventListener('click', () => this.copyCode());\n                document.getElementById('inspectorBtn').addEventListener('click', (e) => this.toggleInspector(e.currentTarget));\n                document.getElementById('themeToggleBtn').addEventListener('click', () => this.toggleTheme());\n                document.getElementById('fullscreenBtn').addEventListener('click', () => this.toggleFullscreen());\n                \n                \/\/ Resizing\n                const divider = document.getElementById('liveEditorDivider');\n                divider.addEventListener('pointerdown', this.startResizing.bind(this));\n                document.addEventListener('pointermove', this.resize.bind(this));\n                document.addEventListener('pointerup', this.stopResizing.bind(this));\n                \n                \/\/ Fullscreen Events\n                document.addEventListener('fullscreenchange', () => this.updateFullscreenButton());\n                document.addEventListener('webkitfullscreenchange', () => this.updateFullscreenButton());\n\n                \/\/ Other events\n                window.addEventListener('resize', this.debounce(this.updateScreenSize.bind(this), 50));\n                this.previewFrame.addEventListener('load', () => this.updateScreenSize());\n                \n                \/\/ Add run command shortcut\n                this.editors.forEach(editor => {\n                    editor.commands.addCommand({\n                        name: \"runCode\",\n                        bindKey: { win: \"Ctrl-Enter\", mac: \"Command-Enter\" },\n                        exec: () => this.runCode()\n                    });\n                });\n            }\n\n            runCode() {\n                let htmlFile = Array.from(this.files.keys()).find(name => this.files.get(name).type === 'html');\n                if (!htmlFile) {\n                    this.previewFrame.srcdoc = '<h1 id=\"no-html-file-to-run\">No HTML file to run.<\/h1>';\n                    return;\n                }\n                \n                let html = this.files.get(htmlFile).content;\n                this.files.forEach((data, name) => {\n                    if (data.type === 'css') {\n                        const regex = new RegExp(`<link[^>]*href=[\"']${name}[\"'][^>]*>`, 'gi');\n                        html = html.replace(regex, `<style>\\n${data.content}\\n<\\\/style>`);\n                    } else if (data.type === 'js') {\n                        const regex = new RegExp(`<script[^>]*src=[\"']${name}[\"'][^>]*><\\\/script>`, 'gi');\n                        html = html.replace(regex, `<script>\\n${data.content}\\n<\\\/script>`);\n                    }\n                });\n                this.previewFrame.srcdoc = html;\n                \n                \/\/ Re-attach inspector if active\n                this.previewFrame.onload = () => {\n                    if (this.isInspectorActive) {\n                        this.activateInspectorListeners();\n                    }\n                };\n            }\n            \n            copyCode() {\n                const editor = this.editors.get(this.currentFile);\n                if (!editor) return;\n                navigator.clipboard.writeText(editor.getValue()).then(() => {\n                    this.showMessageBox('Code copied!');\n                });\n            }\n\n            downloadCode() {\n                const fileName = this.currentFile;\n                const editor = this.editors.get(fileName);\n                if (!editor) return;\n                const blob = new Blob([editor.getValue()], { type: 'text\/plain' });\n                const link = document.createElement(\"a\");\n                link.href = URL.createObjectURL(blob);\n                link.download = fileName;\n                link.click();\n                URL.revokeObjectURL(link.href);\n            }\n\n            toggleTheme() {\n                this.container.classList.toggle('live-editor-dark-mode');\n                const isDarkMode = this.container.classList.contains('live-editor-dark-mode');\n                const newTheme = isDarkMode ? 'ace\/theme\/monokai' : 'ace\/theme\/textmate';\n                this.editors.forEach(editor => editor.setTheme(newTheme));\n                document.getElementById('theme-toggle-icon').textContent = isDarkMode ? '\u2600\ufe0f' : '\ud83c\udf19';\n            }\n\n            toggleFullscreen() {\n                if (!document.fullscreenElement) {\n                    this.container.requestFullscreen().catch(err => alert(`Error: ${err.message}`));\n                } else {\n                    document.exitFullscreen();\n                }\n            }\n            \n            updateFullscreenButton() {\n                const fullscreenBtn = document.getElementById('fullscreenBtn');\n                const isFullscreen = !!document.fullscreenElement;\n                fullscreenBtn.querySelector('.live-editor-icon').textContent = isFullscreen ? '\u2921' : '\u26f6';\n                fullscreenBtn.title = isFullscreen ? 'Exit Fullscreen' : 'Enter Fullscreen';\n            }\n            \n            updateCounts() {\n                const editor = this.editors.get(this.currentFile);\n                if (!editor) return;\n                const content = editor.getValue();\n                document.getElementById('liveEditorCharCount').textContent = `Chars: ${content.length}`;\n                const words = content.match(\/\\b\\w+\\b\/g) || [];\n                document.getElementById('liveEditorWordCount').textContent = `Words: ${words.length}`;\n            }\n\n            updateScreenSize() {\n                const rect = this.previewFrame.getBoundingClientRect();\n                document.getElementById('liveEditorScreenSize').textContent = `Size: ${Math.round(rect.width)}x${Math.round(rect.height)}`;\n            }\n            \n            \/\/ --- Resizing Logic ---\n            startResizing(e) {\n                this.isResizing = true;\n                e.currentTarget.setPointerCapture(e.pointerId);\n                document.body.style.cursor = 'col-resize';\n            }\n            resize(e) {\n                if (!this.isResizing) return;\n                const mainContainer = document.getElementById('liveEditorMainContainer');\n                const editorWrapper = document.getElementById('liveEditorEditorWrapper');\n                const containerRect = mainContainer.getBoundingClientRect();\n                const newEditorWidth = e.clientX - containerRect.left;\n                if (newEditorWidth > 150 && newEditorWidth < containerRect.width - 150) {\n                    editorWrapper.style.flex = `0 0 ${newEditorWidth}px`;\n                    this.updateScreenSize();\n                }\n            }\n            stopResizing(e) {\n                if (this.isResizing) {\n                    this.isResizing = false;\n                    document.getElementById('liveEditorDivider').releasePointerCapture(e.pointerId);\n                    document.body.style.cursor = 'auto';\n                    this.editors.forEach(editor => editor.resize());\n                }\n            }\n\n            \/\/ --- Inspector Logic ---\n            toggleInspector(btn) {\n                this.isInspectorActive = !this.isInspectorActive;\n                btn.classList.toggle('active', this.isInspectorActive);\n                if (this.isInspectorActive) {\n                    this.activateInspectorListeners();\n                } else {\n                    this.deactivateInspectorListeners();\n                    this.inspectorPopup.classList.remove('active');\n                }\n            }\n\n            activateInspectorListeners() {\n                const iframeDoc = this.previewFrame.contentDocument;\n                if (!iframeDoc || !iframeDoc.body) return;\n                this.boundHandleInspectorMouseMove = this.handleInspectorMouseMove.bind(this);\n                this.boundHandleInspectorClick = this.handleInspectorClick.bind(this);\n                iframeDoc.body.addEventListener('mousemove', this.boundHandleInspectorMouseMove, true);\n                iframeDoc.body.addEventListener('click', this.boundHandleInspectorClick, true);\n            }\n\n            deactivateInspectorListeners() {\n                const iframeDoc = this.previewFrame.contentDocument;\n                if (!iframeDoc || !iframeDoc.body || !this.boundHandleInspectorMouseMove) return;\n                iframeDoc.body.removeEventListener('mousemove', this.boundHandleInspectorMouseMove, true);\n                iframeDoc.body.removeEventListener('click', this.boundHandleInspectorClick, true);\n                if (this.highlightedElement) {\n                    this.highlightedElement.style.outline = '';\n                    this.highlightedElement = null;\n                }\n            }\n            \n            handleInspectorMouseMove(e) {\n                if (this.highlightedElement) this.highlightedElement.style.outline = '';\n                this.highlightedElement = e.target;\n                this.highlightedElement.style.outline = '2px solid #3498db';\n            }\n\n            handleInspectorClick(e) {\n                e.preventDefault();\n                e.stopPropagation();\n                this.showInspectorPopup(e.target);\n            }\n            \n            showInspectorPopup(el) {\n                if (!el) return;\n                const getElementIdentifier = (elem) => `${elem.tagName.toLowerCase()}${elem.id ? `#${elem.id}` : ''}${elem.className ? `.${elem.className.toString().split(' ').join('.')}` : ''}`;\n                \n                this.inspectorPopup.innerHTML = `\n                    <div class=\"live-editor-inspector-header\">\n                        <h4 id=\"getelementidentifierel\">${getElementIdentifier(el)}<\/h4>\n                        <button class=\"live-editor-inspector-close\">\u00d7<\/button>\n                    <\/div>\n                    <div class=\"live-editor-inspector-content\">\n                        <h5 id=\"html\">HTML<\/h5>\n                        <pre><code>${el.outerHTML.replace(\/<\/g, \"&lt;\")}<\/code><\/pre>\n                    <\/div>`;\n                this.inspectorPopup.querySelector('.live-editor-inspector-close').onclick = () => {\n                    this.toggleInspector(document.getElementById('inspectorBtn'));\n                };\n                this.inspectorPopup.classList.add('active');\n            }\n\n            \/\/ --- Utilities ---\n            showMessageBox(message) {\n                const messageBox = document.createElement('div');\n                let isDark = this.container.classList.contains('live-editor-dark-mode');\n                messageBox.style.cssText = `\n                    position: fixed; top: 20px; left: 50%; transform: translateX(-50%);\n                    background-color: ${isDark ? '#3a5064' : '#e9ecef'};\n                    color: ${isDark ? '#ffffff' : '#34495e'};\n                    padding: 10px 20px; border-radius: 5px; box-shadow: 0 2px 10px rgba(0,0,0,0.2);\n                    z-index: 10000; font-family: var(--live-editor-font-family); font-size: 14px;\n                    opacity: 0; transition: opacity 0.5s;\n                `;\n                messageBox.textContent = message;\n                document.body.appendChild(messageBox);\n                setTimeout(() => { messageBox.style.opacity = 1; }, 10);\n                setTimeout(() => {\n                    messageBox.style.opacity = 0;\n                    messageBox.addEventListener('transitionend', () => messageBox.remove());\n                }, 2500);\n            }\n            \n            debounce(func, delay) {\n                let timeout;\n                return function (...args) {\n                    clearTimeout(timeout);\n                    timeout = setTimeout(() => func.apply(this, args), delay);\n                };\n            }\n        }\n\n        document.addEventListener('DOMContentLoaded', () => {\n            ace.config.set('basePath', 'https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/ace\/1.4.12\/');\n            new EnhancedLiveEditor();\n        });\n    <\/script>\n\n\n\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"http:\/\/schema.org\",\n  \"@type\": \"WebApplication\",\n  \"name\": \"Online HTML Editor Tool\",\n  \"description\": \"A free online HTML editor tool that lets you write, edit, view, and compile HTML code with features like syntax highlighting, live preview, and code download.\",\n  \"url\": \"https:\/\/www.mygreatlearning.com\/blog\/html-editor-tool\/\",\n  \"applicationCategory\": \"WebDevelopment\",\n  \"operatingSystem\": \"All\",\n  \"softwareVersion\": \"1.0\",\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"url\": \"https:\/\/www.mygreatlearning.com\/blog\/html-editor-tool\/\",\n    \"priceCurrency\": \"USD\",\n    \"price\": \"0.00\",\n    \"eligibleRegion\": {\n      \"@type\": \"Place\",\n      \"name\": \"Global\"\n    }\n  },\n  \"publisher\": {\n    \"@type\": \"Organization\",\n    \"name\": \"Great Learning\",\n    \"url\": \"https:\/\/www.mygreatlearning.com\"\n  },\n  \"screenshot\": \"https:\/\/www.mygreatlearning.com\/blog\/wp-content\/uploads\/2025\/06\/gl-html-compiler-tool.png\",\n  \"sameAs\": \"https:\/\/www.mygreatlearning.com\/blog\/html-editor-tool\/\",\n  \"featureList\": [\n    \"Real-time HTML code editing with syntax highlighting and auto-completion\",\n    \"Character and word count tracker\",\n    \"Option to download code as .html file\",\n    \"Clipboard support to copy HTML code\",\n    \"Responsive design with screen size adjustment\",\n    \"Light and dark theme toggle, with saved preferences using localStorage\",\n    \"New Feature: Shows the device size while previewing\",\n    \"Improvements: Enhanced syntax highlighting and autocomplete\",\n    \"Toolbar Actions: Includes buttons for running code, downloading HTML, clearing the editor, Fullscreen, and switching themes\",\n    \"Fullscreen mode for better coding and previewing feasibility\"\n  ],\n  \"mainEntityOfPage\": {\n    \"@type\": \"WebPage\",\n    \"@id\": \"https:\/\/www.mygreatlearning.com\/blog\/html-editor-tool\/\"\n  }\n}\n<\/script>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<h1 class=\"wp-block-heading\" id=\"online-html-editor-and-compiler\">Online HTML Editor and Compiler<\/h1>\n\n\n\n<p>This tool lets you write, edit, view, and compile HTML code with ease. Experience seamless coding with advanced syntax highlighting, smart autocomplete, and a responsive preview that shows exact device dimensions.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"with-this-html-editor-tool-you-can\"><strong>With this HTML editor tool, you can:<\/strong><\/h3>\n\n\n\n<p><strong>Smart Code Editor:<\/strong> Write HTML efficiently with real-time line numbers, active scrolling synchronization, and a live character\/word counter.<\/p>\n\n\n\n<p><strong>Toolbar Actions:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Includes buttons for running code, downloading HTML, copying HTML, clearing the editor, Fullscreen, and switching themes.<\/li>\n\n\n\n<li>Provides easy access to common actions.<\/li>\n<\/ul>\n\n\n\n<p><strong>Themes:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Users can toggle between a light theme and a dark theme for the editor and preview pane.<\/li>\n\n\n\n<li>Your theme preference is automatically saved for your next visit.<\/li>\n<\/ul>\n\n\n\n<p><strong>Code Download:<\/strong>&nbsp;Users can download the HTML code as a&nbsp;<code>.html<\/code>&nbsp;file with a button click.<\/p>\n\n\n\n<p><strong>Copy HTML Code:<\/strong>&nbsp;HTML code can be copied to the clipboard with a button click, supporting the clipboard API with a fallback.<\/p>\n\n\n\n<p><strong>Full Screen:\u00a0<\/strong>You can switch to full screen for a distraction-free coding and previewing experience.<\/p>\n\n\n\n<p><strong>Responsive Design:<\/strong>&nbsp;The editor adjusts the layout based on screen size, changing to a stacked layout on smaller screens.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" class=\"wp-block-heading\" id=\"frequently-asked-questions\"><strong>Frequently Asked Questions<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"1-do-i-need-to-install-software-to-practice-html\"><strong>1. Do I need to install software to practice HTML?<\/strong>&nbsp;<\/h3>\n\n\n\n<p>No software installation is required. You can use this free web-based HTML Compiler to write, edit, and instantly preview your code directly from your desktop or mobile browser.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"2-how-do-i-check-if-my-html-code-is-mobile-responsive\"><strong>2. How do I check if my HTML code is mobile responsive?<\/strong>&nbsp;<\/h3>\n\n\n\n<p>You can test your code's responsiveness right in the editor. The HTML Compiler includes a device-size preview feature, allowing you to see exactly how your web page layout will render across different screen sizes without leaving your browser.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"3-what-is-the-fastest-way-to-find-errors-in-my-html-code\"><strong>3. What is the fastest way to find errors in my HTML code?<\/strong>&nbsp;<\/h3>\n\n\n\n<p>The easiest way to identify structural mistakes is by using the live preview alongside the editor's smart features. Because the preview updates instantly as you type, you can immediately see if a tag is broken. Additionally, the built-in syntax highlighting color-codes your work, making missing brackets easy to spot, while autocomplete helps prevent typing errors.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4-can-i-use-css-and-javascript-in-this-html-editor\"><strong>4. Can I use CSS and JavaScript in this HTML editor?<\/strong>&nbsp;<\/h3>\n\n\n\n<p>Yes, you can easily add styling and interactivity to your web page. Simply include your CSS within &lt;style&gt; tags and your JavaScript within &lt;script&gt; tags directly in the editor. The live preview will instantly render your styles and execute your scripts alongside your HTML structure.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"5-do-i-need-to-create-an-account-and-is-my-code-private\"><strong>5. Do I need to create an account, and is my code private?<\/strong>&nbsp;<\/h3>\n\n\n\n<p>You do not need to create an account, sign up, or log in to use the HTML Compiler; it is completely free and accessible instantly. Additionally, your code is processed locally within your browser, meaning your work remains private and is not stored or tracked on our servers.<\/p>\n\n\n\n<p><strong>Also Check:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.mygreatlearning.com\/blog\/html-quiz\/\">HTML Quiz<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.mygreatlearning.com\/blog\/top-html-projects\/\">HTML Project Ideas<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.mygreatlearning.com\/blog\/html-interview-questions\/\">HTML Interview Questions and Answers<\/a><\/li>\n<\/ul>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Frontend Web Development Course Learn Front-End Development with HTML, CSS, and JavaScript, and Build Responsive Websites. Enroll Now \u25b6\ufe0f Run \ud83d\udcbe Download \ud83d\udccb Copy \ud83d\uddb1\ufe0f Inspect \u26f6 Fullscreen \ud83c\udf19 Theme Size: 0x0 Chars: 0 Words: 0 Online HTML Editor and Compiler This tool lets you write, edit, view, and compile HTML code with ease. 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