Learn HTML

Learn what HTML is, why it matters, how it fits the web, its key features, common myths, and the best next steps for beginners.

Learn what HTML is, how it structures web pages, where it fits in web development, and why semantic HTML5 matters for accessibility and SEO.

Learn how to set up a simple HTML environment, choose an editor, verify your tools, fix common issues, and start building web pages.

Learn HTML basic syntax, including tags, attributes, nesting, comments, and semantic structure, with clear examples and common mistakes.

Learn how to build your first HTML page with semantic tags, metadata, headings, links, images, and accessible page structure.

Learn what the HTML doctype is, how it affects browser rendering, and how HTML versions evolved from HTML4 to HTML5.

Learn what the HTML head and body do, what belongs in each one, how they work together, and common mistakes to avoid.

Learn how HTML metadata works, including meta, charset, and viewport tags for encoding, mobile scaling, SEO basics, and accessibility.

Learn how to set the HTML page title and favicon, why they matter for SEO and accessibility, and how to add them correctly in the head.

Learn how HTML comments work, when to use them, how to write them correctly, and common mistakes that break markup or expose hidden content.

Learn how HTML heading tags h1 to h6 structure content, improve accessibility, and create clear page hierarchies without common heading.

Learn how HTML paragraphs work, when to use the p element, common mistakes to avoid, and accessibility best practices for text content.

Learn how to use HTML lists with ul, ol, and dl, including nesting, accessibility, semantics, and common mistakes to avoid.

Learn how HTML links work with the anchor tag, href, and target. See accessibility tips, common mistakes, and practical examples.

Learn HTML text formatting tags like b, i, em, and strong, when to use each, accessibility tips, common mistakes, and examples.

Learn how to use HTML blockquote, q, and cite correctly for quoted text, citations, and accessible semantic markup.

Learn when to use HTML code, pre, kbd, and samp tags to mark code, keyboard input, and sample output with correct semantic and accessible.

Learn HTML character entities like   and ©, when to use them, how they render, and common encoding mistakes to avoid.

Learn how HTML images work with img, srcset, and alt. See responsive image examples, accessibility guidance, and common mistakes to avoid.

Learn how HTML responsive images work with picture and source, including art direction, format switching, fallbacks, and common mistakes.

Learn how to use the HTML audio element to embed sound, add controls, support multiple formats, and make audio playback accessible.

Learn HTML video with the <video> element, essential attributes, multiple sources, captions, autoplay rules, and accessibility best.

Learn how HTML iframe and embed elements work, when to use them, and how to make embedded content accessible and secure.

Learn how HTML figure and figcaption group images, code, and media with captions, improve semantics, and support accessible page structure.

Learn how HTML canvas works, how to draw shapes and text, when to use it, accessibility tips, common mistakes, and practical examples.

Learn how to use inline SVG in HTML, add accessible labels, style shapes with CSS, and avoid common embedding mistakes.

Learn HTML table basics, including table structure, headers, captions, and accessible semantic markup for displaying tabular data correctly.

Learn how HTML table headers work with th, thead, tbody, and scope to make tables accessible, readable, and correctly associated.

Learn how HTML table captions work, where to place them, and how to write accessible, descriptive table labels with the caption element.

Learn how to make HTML tables accessible with captions, headers, scope, and associations that help screen readers understand data.

Learn the HTML form element, common input types, labels, validation, and accessible form structure for collecting user data correctly.

Learn HTML input types like text, email, range, number, date, and file, plus validation, accessibility, and common form mistakes.

Learn how HTML labels improve form accessibility, how to connect them correctly, and common mistakes that break screen reader and click.

Learn how HTML select, option, and datalist work together to build accessible choice controls, dropdowns, and suggested text inputs.

Learn how HTML textarea works, including attributes, accessibility, sizing, validation, and common mistakes when building multi-line form.

Learn how HTML buttons work in forms, when to use button and input submit, default submit behavior, and common accessibility pitfalls.

Learn how HTML form validation works with required and pattern, including accessibility tips, common mistakes, and practical examples.

Learn how HTML form action, method, and enctype control where data goes, how it is sent, and which encoding to use.

Learn why semantic HTML matters, how it improves accessibility, SEO, maintainability, and how to choose the right elements for meaningful.

Learn when to use HTML structural elements like header, nav, main, section, article, aside, and footer for accessible page structure.

Learn the difference between HTML inline and block elements, how they affect layout, and when to use each for semantic, accessible markup.

Learn how HTML microdata and Schema.org structured data work, how to mark up pages, common mistakes, and best practices for SEO.

Learn how to write HTML SEO metadata and Open Graph tags for better search snippets, social previews, accessibility, and page sharing.

Learn HTML global attributes like id, class, style, and title, when to use each one, common mistakes, and accessibility best practices.

Learn how HTML data-* attributes store custom metadata, how to name and read them, and when to use them safely and accessibly.

Learn how HTML ARIA and accessibility attributes improve labels, roles, and keyboard support, plus common mistakes and best practices.

Learn how HTML tabindex works, how focus order is affected, and how to manage keyboard navigation and accessibility safely.

Learn how HTML custom attributes work, when to use data-* attributes, naming rules, and how to avoid common markup mistakes.

Learn how HTML anchors and href work, how to link to pages, sections, email, phone, and files, plus accessibility and common mistakes.

Learn how HTML loading attributes lazy, async, and defer affect images and scripts, when to use each one, and how to avoid common loading.

Learn how HTML sandboxed iframes improve security, what each sandbox token does, common mistakes, and safer ways to embed untrusted content.