[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"site-config":3,"course-tree":6,"blog-categories":334,"topic:html-browser-support-compatibility":360},{"data":4},{"google_site_verification":5,"ga4_measurement_id":5,"site_name":5,"default_og_image":5,"twitter_handle":5},null,{"data":7},[8],{"id":9,"name":10,"slug":11,"icon":5,"icon_url":5,"short_description":12,"meta_title":13,"meta_description":14,"og_image":15,"locale":16,"subcategories":17},1,"HTML","html-tutorial","Welcome to our HTML Tutorial for Beginners, a complete guide designed to help you learn HTML from the ground up.\n\nHTML, which stands for HyperText Markup Language, is the standard language used to structure content on the web. Whether you want to become a web developer, build your own website, or continue learning CSS and JavaScript, understanding HTML is an essential first step.\n\nThis HTML course takes you through the fundamentals step by step, using simple explanations and practical examples. ","HTML Tutorial for Beginners - Learn HTML Step by Step","Learn HTML from scratch with our beginner-friendly HTML tutorial. Understand HTML tags, elements, forms, tables, links, images, semantic HTML and more with practical examples.","https:\u002F\u002Fwpfsharp.com\u002Fstorage\u002Fcourses\u002Fog\u002F01M2GK0XN45C0B937NF9XFAD4S.webp","en",[18,46,82,106,182,216,230,258,282,298],{"id":9,"name":19,"slug":20,"order_index":9,"topics":21},"HTML Fundamentals & Setup","html-fundamentals-setup",[22,26,30,34,38,42],{"id":9,"title":23,"slug":24,"order_index":9,"cornerstone":25,"reading_time_minutes":9},"HTML Introduction & History","html-introduction-and-history",false,{"id":27,"title":28,"slug":29,"order_index":9,"cornerstone":25,"reading_time_minutes":27},2,"HTML Editors & Environment Setup","html-editors-and-environment-setup",{"id":31,"title":32,"slug":33,"order_index":31,"cornerstone":25,"reading_time_minutes":27},3,"HTML Basic Syntax & Document Structure","html-basic-syntax-document-structure",{"id":35,"title":36,"slug":37,"order_index":35,"cornerstone":25,"reading_time_minutes":27},4,"HTML Elements & Tags Explained","html-elements-tags-explained",{"id":39,"title":40,"slug":41,"order_index":39,"cornerstone":25,"reading_time_minutes":27},5,"HTML Attributes (Global & Standard)","html-attributes-global-standard",{"id":43,"title":44,"slug":45,"order_index":43,"cornerstone":25,"reading_time_minutes":27},6,"Understanding the DOCTYPE & HTML5 Boilerplate","understanding-doctype-html5-boilerplate",{"id":27,"name":47,"slug":48,"order_index":27,"topics":49},"Text & Content Basics","text-content-basics",[50,54,58,62,66,70,74,78],{"id":51,"title":52,"slug":53,"order_index":51,"cornerstone":25,"reading_time_minutes":27},7,"HTML Headings (H1–H6) & SEO Best Practices","html-headings-h1-h6-seo-best-practices",{"id":55,"title":56,"slug":57,"order_index":55,"cornerstone":25,"reading_time_minutes":27},8,"HTML Paragraphs & Line Breaks","html-paragraphs-line-breaks",{"id":59,"title":60,"slug":61,"order_index":59,"cornerstone":25,"reading_time_minutes":9},9,"HTML Text Formatting (Bold, Italic, Mark, etc.)","html-text-formatting-bold-italic-mark",{"id":63,"title":64,"slug":65,"order_index":63,"cornerstone":25,"reading_time_minutes":27},10,"HTML Styles (Inline CSS Basics)","html-styles-inline-css-basics",{"id":67,"title":68,"slug":69,"order_index":67,"cornerstone":25,"reading_time_minutes":27},11,"HTML Quotations & Citations (blockquote, q, cite)","html-quotations-citations-blockquote-q-cite",{"id":71,"title":72,"slug":73,"order_index":71,"cornerstone":25,"reading_time_minutes":27},12,"HTML Comments (Best Practices)","html-comments-best-practices",{"id":75,"title":76,"slug":77,"order_index":75,"cornerstone":25,"reading_time_minutes":27},13,"HTML Colors (Names, HEX, RGB, HSL)","html-colors-names-hex-rgb-hsl",{"id":79,"title":80,"slug":81,"order_index":79,"cornerstone":25,"reading_time_minutes":27},14,"HTML & CSS Integration (Inline, Internal, External)","html-css-integration-inline-internal-external",{"id":31,"name":83,"slug":84,"order_index":31,"topics":85},"Links, Media & Navigation","links-media-navigation",[86,90,94,98,102],{"id":87,"title":88,"slug":89,"order_index":87,"cornerstone":25,"reading_time_minutes":27},15,"HTML Links (Anchor Tags & Hyperlinks)","html-links-anchor-tags-hyperlinks",{"id":91,"title":92,"slug":93,"order_index":91,"cornerstone":25,"reading_time_minutes":27},16,"HTML Images (Alt Text, Lazy Loading, Formats)","html-images-alt-text-lazy-loading-formats",{"id":95,"title":96,"slug":97,"order_index":95,"cornerstone":25,"reading_time_minutes":9},17,"HTML Favicon Setup","html-favicon-setup",{"id":99,"title":100,"slug":101,"order_index":99,"cornerstone":25,"reading_time_minutes":27},18,"HTML Page Title & Meta Tags (SEO Essentials)","html-page-title-meta-tags-seo-essentials",{"id":103,"title":104,"slug":105,"order_index":103,"cornerstone":25,"reading_time_minutes":27},19,"HTML File Paths (Absolute vs Relative)","html-file-paths-absolute-vs-relative",{"id":35,"name":107,"slug":108,"order_index":35,"topics":109},"Structuring Content","structuring-content",[110,115,120,125,130,134,138,142,146,150,154,158,162,166,170,174,178],{"id":111,"title":112,"slug":113,"order_index":114,"cornerstone":25,"reading_time_minutes":27},24,"HTML Tables Explained: Rows, Columns & Merging Cells","html-tables-rows-columns-merging-cells",20,{"id":116,"title":117,"slug":118,"order_index":119,"cornerstone":25,"reading_time_minutes":27},25,"HTML Lists: Ordered, Unordered & Description Lists","html-lists-ordered-unordered-description",21,{"id":121,"title":122,"slug":123,"order_index":124,"cornerstone":25,"reading_time_minutes":27},26,"HTML Block vs Inline Elements Explained","html-block-vs-inline-elements",22,{"id":126,"title":127,"slug":128,"order_index":129,"cornerstone":25,"reading_time_minutes":9},27,"HTML Div & Span: Generic Containers Explained","html-div-and-span-containers",23,{"id":131,"title":132,"slug":133,"order_index":111,"cornerstone":25,"reading_time_minutes":27},28,"HTML Classes vs ID: Selectors Explained","html-classes-vs-id-selectors-explained",{"id":135,"title":136,"slug":137,"order_index":116,"cornerstone":25,"reading_time_minutes":9},29,"HTML Iframes: Embedding External Content","html-iframes-embedding-content",{"id":139,"title":140,"slug":141,"order_index":121,"cornerstone":25,"reading_time_minutes":27},30,"HTML Head Element Deep Dive","html-head-element-deep-dive",{"id":143,"title":144,"slug":145,"order_index":126,"cornerstone":25,"reading_time_minutes":27},31,"HTML Layout Techniques: Header, Nav & Footer","html-layout-techniques-header-nav-footer",{"id":147,"title":148,"slug":149,"order_index":131,"cornerstone":25,"reading_time_minutes":27},32,"Responsive HTML Design: Mobile-First Approach","responsive-html-design-mobile-first-approach",{"id":151,"title":152,"slug":153,"order_index":135,"cornerstone":25,"reading_time_minutes":31},74,"HTML Semantic Elements (article, section, aside, nav)","html-semantic-elements-article-section-aside-nav",{"id":155,"title":156,"slug":157,"order_index":139,"cornerstone":25,"reading_time_minutes":27},75,"HTML Style Guide & Coding Conventions","html-style-guide-coding-conventions",{"id":159,"title":160,"slug":161,"order_index":143,"cornerstone":25,"reading_time_minutes":27},76,"HTML Entities & Special Characters","html-entities-special-characters",{"id":163,"title":164,"slug":165,"order_index":147,"cornerstone":25,"reading_time_minutes":9},77,"HTML Symbols","html-symbols",{"id":167,"title":168,"slug":169,"order_index":167,"cornerstone":25,"reading_time_minutes":9},33,"HTML Emojis 😀: How to Use Them in Web Pages","html-emojis-trending-guide",{"id":171,"title":172,"slug":173,"order_index":171,"cornerstone":25,"reading_time_minutes":27},34,"HTML Character Sets: UTF-8 & Encoding Explained","html-character-sets-utf-8-encoding",{"id":175,"title":176,"slug":177,"order_index":175,"cornerstone":25,"reading_time_minutes":9},35,"HTML URL Encoding Explained","html-url-encoding-explained",{"id":179,"title":180,"slug":181,"order_index":179,"cornerstone":25,"reading_time_minutes":9},36,"HTML vs XHTML: Key Differences","html-vs-xhtml-key-differences",{"id":51,"name":183,"slug":184,"order_index":39,"topics":185},"Forms & User Input","forms-user-input",[186,191,196,201,206,211],{"id":187,"title":188,"slug":189,"order_index":190,"cornerstone":25,"reading_time_minutes":27},49,"HTML Forms Introduction","html-forms-introduction",37,{"id":192,"title":193,"slug":194,"order_index":195,"cornerstone":25,"reading_time_minutes":9},50,"HTML Form Attributes (action, method, etc.)","html-form-attributes-action-method",38,{"id":197,"title":198,"slug":199,"order_index":200,"cornerstone":25,"reading_time_minutes":9},51,"HTML Form Elements (input, select, textarea, button)","html-form-elements-input-select-textarea-button",39,{"id":202,"title":203,"slug":204,"order_index":205,"cornerstone":25,"reading_time_minutes":27},52,"HTML Input Types (Modern Types: email, date, color, range)","html-input-types-modern-email-date-color-range",40,{"id":207,"title":208,"slug":209,"order_index":210,"cornerstone":25,"reading_time_minutes":27},53,"HTML Input Attributes (required, placeholder, pattern)","html-input-attributes-required-placeholder-pattern",41,{"id":212,"title":213,"slug":214,"order_index":215,"cornerstone":25,"reading_time_minutes":27},54,"HTML Form Validation (Client-Side)","html-form-validation-client-side",42,{"id":55,"name":217,"slug":218,"order_index":43,"topics":219},"Graphics & Visuals","graphics-visuals",[220,225],{"id":221,"title":222,"slug":223,"order_index":224,"cornerstone":25,"reading_time_minutes":31},55,"HTML Canvas (2D Drawing API) 🔥","html-canvas-2d-drawing-api",43,{"id":226,"title":227,"slug":228,"order_index":229,"cornerstone":25,"reading_time_minutes":31},56,"HTML SVG (Scalable Vector Graphics)","html-svg-scalable-vector-graphics",44,{"id":59,"name":231,"slug":232,"order_index":51,"topics":233},"Multimedia","multimedia",[234,239,244,249,254],{"id":235,"title":236,"slug":237,"order_index":238,"cornerstone":25,"reading_time_minutes":27},57,"HTML Media Overview","html-media-overview",45,{"id":240,"title":241,"slug":242,"order_index":243,"cornerstone":25,"reading_time_minutes":27},58,"HTML Video Embedding (Native Player)","html-video-embedding-native-player",46,{"id":245,"title":246,"slug":247,"order_index":248,"cornerstone":25,"reading_time_minutes":27},59,"HTML Audio Embedding","html-audio-embedding",47,{"id":250,"title":251,"slug":252,"order_index":253,"cornerstone":25,"reading_time_minutes":27},60,"HTML Plug-ins (Object & Embed Tags)","html-plugins-object-embed-tags",48,{"id":255,"title":256,"slug":257,"order_index":187,"cornerstone":25,"reading_time_minutes":27},61,"Embedding YouTube Videos in HTML","embedding-youtube-videos-in-html",{"id":63,"name":259,"slug":260,"order_index":55,"topics":261},"HTML5 Web APIs (Advanced\u002FTrending)","html5-web-apis-advancedtrending",[262,266,270,274,278],{"id":263,"title":264,"slug":265,"order_index":192,"cornerstone":25,"reading_time_minutes":27},62,"HTML Geolocation API","html-geolocation-api",{"id":267,"title":268,"slug":269,"order_index":197,"cornerstone":25,"reading_time_minutes":27},63,"HTML Drag & Drop API","html-drag-and-drop-api",{"id":271,"title":272,"slug":273,"order_index":202,"cornerstone":25,"reading_time_minutes":27},64,"HTML Web Storage (localStorage & sessionStorage)","html-web-storage-localstorage-sessionstorage",{"id":275,"title":276,"slug":277,"order_index":207,"cornerstone":25,"reading_time_minutes":27},65,"HTML Web Workers (Background Processing)","html-web-workers-background-processing",{"id":279,"title":280,"slug":281,"order_index":212,"cornerstone":25,"reading_time_minutes":27},66,"HTML Server-Sent Events (SSE)","html-server-sent-events-sse",{"id":67,"name":283,"slug":284,"order_index":59,"topics":285},"Accessibility & Best Practices (High-Demand  Skill) �","accessibility-best-practices-high-demand-skill",[286,290,294],{"id":287,"title":288,"slug":289,"order_index":221,"cornerstone":25,"reading_time_minutes":27},67,"HTML Accessibility (ARIA, Screen Readers)","html-accessibility-aria-screen-readers",{"id":291,"title":292,"slug":293,"order_index":226,"cornerstone":25,"reading_time_minutes":27},68,"Writing Semantic & SEO-Friendly HTML","writing-semantic-and-seo-friendly-html",{"id":295,"title":296,"slug":297,"order_index":235,"cornerstone":25,"reading_time_minutes":27},69,"HTML Performance Optimization Basics","html-performance-optimization-basics",{"id":71,"name":299,"slug":300,"order_index":63,"topics":301},"Reference & Practice","reference-practice",[302,306,310,314,318,322,326,330],{"id":303,"title":304,"slug":305,"order_index":9,"cornerstone":25,"reading_time_minutes":27},70,"HTML Tag List (Full Reference)","html-tag-list-full-reference",{"id":307,"title":308,"slug":309,"order_index":27,"cornerstone":25,"reading_time_minutes":27},71,"HTML Global Attributes Reference","html-global-attributes-reference",{"id":311,"title":312,"slug":313,"order_index":31,"cornerstone":25,"reading_time_minutes":27},72,"HTML Events Reference","html-events-reference",{"id":315,"title":316,"slug":317,"order_index":35,"cornerstone":25,"reading_time_minutes":27},73,"HTML Browser Support & Compatibility","html-browser-support-compatibility",{"id":319,"title":320,"slug":321,"order_index":39,"cornerstone":25,"reading_time_minutes":27},78,"HTML Doctypes Reference","html-doctypes-reference",{"id":323,"title":324,"slug":325,"order_index":43,"cornerstone":25,"reading_time_minutes":27},79,"HTTP Methods & Messages (Basics for Forms\u002FAPIs)","http-methods-messages-basics",{"id":327,"title":328,"slug":329,"order_index":51,"cornerstone":25,"reading_time_minutes":31},80,"HTML Interview Preparation (Top Q&A)","html-interview-preparation-top-qa",{"id":331,"title":332,"slug":333,"order_index":55,"cornerstone":25,"reading_time_minutes":9},81,"HTML Quiz & Practice Exercises","html-quiz-practice-exercises",{"data":335},[336,341,345,350,355],{"name":337,"slug":338,"description":339,"post_count":27,"subcategories":340},"CSS","css","Learn CSS with practical tutorials and examples covering layouts, Flexbox, Grid, responsive design, typography, positioning, animations, and more.",[],{"name":10,"slug":342,"description":343,"post_count":27,"subcategories":344},"html","Learn HTML with practical tutorials and examples for beginners. Explore HTML tags, elements, attributes, links, images, forms, semantic HTML, and more with clear explanations and real code examples.",[],{"name":346,"slug":347,"description":348,"post_count":9,"subcategories":349},"WPF","wpf","Learn WPF with practical tutorials and examples covering XAML, windows, controls, layouts, data binding, MVVM, commands, styles, templates, debugging, and modern WPF UI development.",[],{"name":351,"slug":352,"description":353,"post_count":9,"subcategories":354},"Python","python","Learn Python with practical tutorials covering strings, lists, functions, exceptions, files, packages, virtual environments, modules, classes, and beginner programming concepts.",[],{"name":356,"slug":357,"description":358,"post_count":9,"subcategories":359},"Java","java","Learn Java with practical tutorials and examples for beginners. Explore Java syntax, variables, data types, classes, objects, methods, inheritance, exceptions, collections, and more with clear explanations and real code examples.",[],{"data":361},{"id":315,"title":316,"slug":317,"content":362,"course":363,"subcategory":364,"author":365,"reading_time_minutes":27,"cornerstone":25,"schema_type":371,"faq_json":5,"video_url":5,"canonical_url":372,"meta_title":373,"meta_description":374,"og_image":5,"toc_json":375,"code_examples":408,"quiz":5,"exercises":420,"published_at":5,"updated_at":427,"prev":428,"next":429},"\u003Ch1 id=\"html-browser-support-compatibility\">HTML Browser Support & Compatibility\u003C\u002Fh1>\u003Cp>Understanding \u003Cstrong>HTML browser support\u003C\u002Fstrong> is critical for building websites that work reliably across Chrome, Firefox, Safari, Edge, and older browsers. This guide explains how \u003Cstrong>browser compatibility\u003C\u002Fstrong> works, how to check support for HTML features, and how to write fallback code for unsupported elements.\u003C\u002Fp>\u003Ch2 id=\"why-browser-compatibility-matters\">Why Browser Compatibility Matters\u003C\u002Fh2>\u003Cp>Not every browser implements every HTML5 feature the same way, and some older browsers don't support modern elements at all. Checking \u003Cstrong>HTML browser support\u003C\u002Fstrong> before using a new tag or attribute in production prevents broken layouts and missing functionality for real users.\u003C\u002Fp>\u003Ch2 id=\"1-how-to-check-browser-support\">1. How to Check Browser Support\u003C\u002Fh2>\u003Ctable>\u003Ctr>\u003Cth>Resource\u003C\u002Fth>\u003Cth>Purpose\u003C\u002Fth>\u003C\u002Ftr>\u003Ctr>\u003Ctd>caniuse.com\u003C\u002Ftd>\u003Ctd>Shows feature support tables across browser versions\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>MDN Web Docs\u003C\u002Ftd>\u003Ctd>Lists browser compatibility data for every HTML\u002FCSS\u002FJS feature\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>Browser DevTools\u003C\u002Ftd>\u003Ctd>Lets you test rendering directly in each browser\u003C\u002Ftd>\u003C\u002Ftr>\u003C\u002Ftable>\u003Ch2 id=\"2-widely-supported-html5-elements\">2. Widely Supported HTML5 Elements\u003C\u002Fh2>\u003Ctable>\u003Ctr>\u003Cth>Element\u003C\u002Fth>\u003Cth>Support Level\u003C\u002Fth>\u003C\u002Ftr>\u003Ctr>\u003Ctd><header>, <footer>, <section>, <article>\u003C\u002Ftd>\u003Ctd>Supported in all modern browsers\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd><video>, <audio>\u003C\u002Ftd>\u003Ctd>Widely supported, but codec support varies (MP4, WebM, Ogg)\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd><canvas>\u003C\u002Ftd>\u003Ctd>Supported everywhere except very old IE versions\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd><input type='date'>\u003C\u002Ftd>\u003Ctd>Fully supported in Chrome, Edge, Firefox; partial in older Safari\u003C\u002Ftd>\u003C\u002Ftr>\u003C\u002Ftable>\u003Ch2 id=\"3-feature-detection-with-javascript\">3. Feature Detection with JavaScript\u003C\u002Fh2>\u003Cp>Instead of guessing whether a browser supports a feature, you can detect it directly in code and provide a fallback if it's missing. This is safer than relying on browser-name checks, which can be inaccurate.\u003C\u002Fp>\u003Ch2 id=\"4-providing-fallbacks\">4. Providing Fallbacks\u003C\u002Fh2>\u003Ctable>\u003Ctr>\u003Cth>Technique\u003C\u002Fth>\u003Cth>Description\u003C\u002Fth>\u003C\u002Ftr>\u003Ctr>\u003Ctd><noscript>\u003C\u002Ftd>\u003Ctd>Displays fallback content when JavaScript is disabled\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>Multiple <source> tags\u003C\u002Ftd>\u003Ctd>Lets <video>\u002F<audio> try multiple formats until one is supported\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>Polyfills\u003C\u002Ftd>\u003Ctd>JavaScript libraries that replicate missing browser features\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>Progressive enhancement\u003C\u002Ftd>\u003Ctd>Build a basic working version first, then add advanced features on top\u003C\u002Ftd>\u003C\u002Ftr>\u003C\u002Ftable>\u003Ch2 id=\"5-common-compatibility-pitfalls\">5. Common Compatibility Pitfalls\u003C\u002Fh2>\u003Ctable>\u003Ctr>\u003Cth>Pitfall\u003C\u002Fth>\u003Cth>Why It Happens\u003C\u002Fth>\u003C\u002Ftr>\u003Ctr>\u003Ctd>CSS Grid\u002FFlexbox quirks\u003C\u002Ftd>\u003Ctd>Older browser versions implement spec differences\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>Missing video codecs\u003C\u002Ftd>\u003Ctd>Not all browsers support the same video\u002Faudio formats\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>Outdated Internet Explorer usage\u003C\u002Ftd>\u003Ctd>IE lacks support for many HTML5 and CSS3 features\u003C\u002Ftd>\u003C\u002Ftr>\u003Ctr>\u003Ctd>Vendor prefixes\u003C\u002Ftd>\u003Ctd>Some CSS properties still need -webkit-, -moz- prefixes for full support\u003C\u002Ftd>\u003C\u002Ftr>\u003C\u002Ftable>\u003Ch2 id=\"best-practices-for-cross-browser-html\">Best Practices for Cross-Browser HTML\u003C\u002Fh2>\u003Cp>Always test on real devices and browsers, use feature detection over browser sniffing, include fallbacks for media elements, and validate your HTML to catch structural issues that render inconsistently across browsers.\u003C\u002Fp>\u003Ch2 id=\"try-it-yourself\">Try It Yourself\u003C\u002Fh2>\u003Cp>Use the live code examples below to see feature detection and fallback patterns in action.\u003C\u002Fp>\u003Cdiv class=\"try-it-yourself language-javascript\">\u003Cpre>\u003Ccode>if ('geolocation' in navigator) {\n  console.log('Geolocation is supported!');\n} else {\n  console.log('Geolocation is NOT supported in this browser.');\n}\u003C\u002Fcode>\u003C\u002Fpre>\u003C\u002Fdiv>\u003Cdiv class=\"try-it-yourself language-html\">\u003Cpre>\u003Ccode><video controls width='300'>\n  <source src='movie.mp4' type='video\u002Fmp4'>\n  <source src='movie.ogg' type='video\u002Fogg'>\n  Your browser does not support the video tag.\n<\u002Fvideo>\u003C\u002Fcode>\u003C\u002Fpre>\u003C\u002Fdiv>\u003Cdiv class=\"try-it-yourself language-html\">\u003Cpre>\u003Ccode><noscript>\n  <p>This site works best with JavaScript enabled. Some features may not work.<\u002Fp>\n<\u002Fnoscript>\u003C\u002Fcode>\u003C\u002Fpre>\u003C\u002Fdiv>",{"name":10,"slug":11},{"name":299,"slug":300},{"slug":366,"display_name":367,"job_title":5,"short_bio":5,"expertise_tags":368,"headshot":5,"long_bio":5,"credentials":5,"twitter_url":5,"linkedin_url":5,"github_url":5,"personal_website_url":5,"other_sameas_urls":5,"topics":369,"posts":370},"badar-khalil","Badar Khalil",[],[],[],"Article","https:\u002F\u002Fwpfsharp.com\u002Ftopics\u002Fhtml-browser-support-compatibility","HTML Browser Support & Compatibility Guide","Understand HTML browser support and compatibility, feature detection, fallbacks, and how to test across modern browsers.",[376,380,384,388,392,396,400,404],{"id":377,"text":378,"level":27,"children":379},"why-browser-compatibility-matters","Why Browser Compatibility Matters",[],{"id":381,"text":382,"level":27,"children":383},"1-how-to-check-browser-support","1. How to Check Browser Support",[],{"id":385,"text":386,"level":27,"children":387},"2-widely-supported-html5-elements","2. Widely Supported HTML5 Elements",[],{"id":389,"text":390,"level":27,"children":391},"3-feature-detection-with-javascript","3. Feature Detection with JavaScript",[],{"id":393,"text":394,"level":27,"children":395},"4-providing-fallbacks","4. Providing Fallbacks",[],{"id":397,"text":398,"level":27,"children":399},"5-common-compatibility-pitfalls","5. Common Compatibility Pitfalls",[],{"id":401,"text":402,"level":27,"children":403},"best-practices-for-cross-browser-html","Best Practices for Cross-Browser HTML",[],{"id":405,"text":406,"level":27,"children":407},"try-it-yourself","Try It Yourself",[],[409,414,417],{"id":410,"language":411,"code":412,"is_editable":413},164,"javascript","if ('geolocation' in navigator) {\n  console.log('Geolocation is supported!');\n} else {\n  console.log('Geolocation is NOT supported in this browser.');\n}",true,{"id":415,"language":342,"code":416,"is_editable":413},165,"\u003Cvideo controls width='300'>\n  \u003Csource src='movie.mp4' type='video\u002Fmp4'>\n  \u003Csource src='movie.ogg' type='video\u002Fogg'>\n  Your browser does not support the video tag.\n\u003C\u002Fvideo>",{"id":418,"language":342,"code":419,"is_editable":413},166,"\u003Cnoscript>\n  \u003Cp>This site works best with JavaScript enabled. Some features may not work.\u003C\u002Fp>\n\u003C\u002Fnoscript>",[421],{"id":307,"title":422,"slug":423,"prompt":424,"starter_code":425,"expected_output":426,"language":411,"order_index":9},"Write a Feature Detection Check","write-feature-detection-check","Write JavaScript that checks if the browser supports the localStorage API. If supported, log 'localStorage available'; if not, log 'localStorage not supported'.","\u002F\u002F Check for localStorage support below\nif (typeof(Storage) !== 'undefined') {\n  \n} else {\n  \n}","Console logs whether localStorage is available in the current browser.","2026-09-27T19:40:24+00:00",{"id":311,"slug":313,"title":312},{"id":319,"slug":321,"title":320}]