HTML — MERN Stack Roadmap

Structure and semantics of web documents

Steps in HTML

HTML Basics & Document Structure — beginner · Anatomy of an HTML document: doctype, head, body, elements and attributes
Semantic HTML — beginner · Semantic elements (header, nav, main, article, section, footer) and why structure matters for SEO and accessibility
Text, Headings & Lists — beginner · Headings hierarchy, paragraphs, ordered lists, unordered lists, description lists and nested lists
Forms & Inputs — beginner · Form elements, input types, labels, validation attributes and accessible form design
Tables — beginner · Tabular data markup: table, thead, tbody, tr, th, td, colspan/rowspan
Media & Embedding — beginner · Images, responsive images (srcset), audio, video and iframes
Meta Tags & Basic SEO — beginner · Meta tags, Open Graph tags, favicons and how they affect search engines and link previews
Web Accessibility (a11y) Basics — beginner · ARIA roles, alt text, keyboard navigation and writing accessible markup