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HTML Cheatsheet
Semantic HTML reference covering document structure, text elements, media, forms, and SEO-ready metadata.
How to use this tool
- Use search to filter tags by purpose, notes, or snippet content.
- Jump between reference groups with the section index links.
- Preview and copy snippets, then test custom markup in the live preview editor.
What this includes
- Covers document structure, semantic text, media, forms, and metadata tags.
- Each entry pairs tag syntax with intent and practical implementation notes.
- Preview and copy actions speed up docs, templates, and onboarding workflows.
Implementation guidance
- Prefer semantic landmarks and correctly nested heading hierarchies.
- Always include accessible labeling and alt text for user-facing content.
- Validate metadata tags for search and social previews before release.
FAQ
- Does the snippet preview run locally?
- Yes. The preview is rendered in a sandboxed iframe directly in your browser.
- Can I edit snippets before previewing?
- Yes. The preview editor is fully editable, so you can paste or modify markup before testing.
- Is this a full HTML specification?
- No. It is a practical reference focused on common, high-value patterns for everyday development.
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