HTML · From your first tag to accessible, well-built pages
HTML, start to finish
How web pages are structured: tags, links, media, forms and the meaning behind them. Every lesson is a small machine you can step through, then a short quiz.
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Part of: Web developer
Module 01 Beginner
First page
What HTML is and the building blocks of every page.
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Lesson 01 · 8 min
What HTML is
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Lesson 02 · 9 min
The shape of an HTML document
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Lesson 03 · 8 min
Headings, paragraphs and lists
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Lesson 04 · 9 min
Links and URLs
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Lesson 05 · 8 min
Images, audio and video
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Module 02 Intermediate
Structure and meaning
Marking up content so browsers, search engines and assistive tech understand it.
Module 03 Advanced
How browsers use HTML
From bytes to a page: parsing, the DOM, metadata and loading.
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Lesson 11 · 12 min
From HTML to the DOM tree
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Lesson 12 · 10 min
The head: metadata, SEO and sharing
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Lesson 13 · 12 min
Loading scripts: defer and async
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Lesson 14 · 10 min
Responsive images
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Lesson 15 · 12 min
Iframes and embeds
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Special topics
Stand-alone deep dives.