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Internal Linking Strategy for Topic Clusters

List Items Must Be Contained in UL or OL

Best practices guide for List Items Must Be Contained in UL or OL (HT-018). Priority: Medium.…
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Lang and xml:lang Must Match

Best practices guide for Lang and xml:lang Must Match (HT-023). Priority: Medium. Live check available.
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aria-hidden Must Not Be Present on Document Body

Best practices guide for aria-hidden Must Not Be Present on Document Body (HT-020). Priority: Critical. Live…
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Remove Marquee Elements

Best practices guide for Remove Marquee Elements (HT-024). Priority: High. Live check available.
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HTML Element Must Have Valid Lang Attribute Value

Best practices guide for HTML Element Must Have Valid Lang Attribute Value (HT-022). Priority: High. Live…
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Table Headers Must Reference Valid IDs

Best practices guide for Table Headers Must Reference Valid IDs (HT-025). Priority: Medium. Live check available.
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