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lang

The lang prop on the <html> element must have a valid value based on ISO country and language codes.

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References

  1. axe-core, valid-langarrow-up-right

  2. ISO Language Codesarrow-up-right

  3. ISO Country Codesarrow-up-right

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Rule details

This rule takes no arguments.

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Succeed

<html lang="en">
<html lang="en-US">

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Fail

<html>
<html lang="foo">
Previous[Deprecated] label-has-forNextmedia-has-caption

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