HTML – Beyond the Basics

This section covers medium to advanced HTML concepts that matter in real-world frontend development and interviews. Basic tag definitions are skipped — you already know those.

What's Covered

• Forms & Validation – novalidate, pattern, autocomplete, constraint API
• Tables & Layout – Semantic table markup, scope, colspan, accessibility
• Multimedia & Embedding – <picture>, <track>, art direction, responsive media
• SEO & Metadata – Canonical links, Open Graph, structured data, accessibility
• Performance & Loading – async/defer, lazy loading, responsive images, preloading