html-xml-lang-mismatch

Use when applies to XHTML documents and polyglot HTML documents that must parse correctly as both HTML5 and XML. For modern HTML5-only documents, only `lang` is needed and `xml:lang` is not required. Check when auditing documents served as application/xhtml+xml or documents that include both attributes.

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63%

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tessl review fix ./skills/html-xml-lang-mismatch/SKILL.md

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Repository: thedaviddias/Front-End-Checklist
Path: skills/html-xml-lang-mismatch/SKILL.md
Commit: 48405aa

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