Semantic HTML5, SEO basics, alt text, progressive enhancement and SPA concerns. Use when building web UI, reviewing markup or optimising for search.
Install
npx skills add dembrandt/dembrandt-skills --skill semantic-html-and-seonpx skills add dembrandt/dembrandt-skills --skill semantic-html-and-seo -a claude-code -gnpx skills add dembrandt/dembrandt-skills --skill semantic-html-and-seo -a codex -ggemini skills install https://github.com/dembrandt/dembrandt-skills.git --path skills/semantic-html-and-seogh skill install dembrandt/dembrandt-skills semantic-html-and-seogit clone --depth 1 https://github.com/dembrandt/dembrandt-skills /tmp/dembrandt__dembrandt-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/dembrandt__dembrandt-skills/skills/semantic-html-and-seo ~/.claude/skills/semantic-html-and-seo # Claude Code
cp -R /tmp/dembrandt__dembrandt-skills/skills/semantic-html-and-seo ~/.agents/skills/semantic-html-and-seo # Codex, Cursor, Gemini CLI, Copilot, OpenCode