28 lines
651 B
Markdown
28 lines
651 B
Markdown
# html-has-lang
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<html> elements must have the lang prop. This rule is largely superseded by the [`lang` rule](https://github.com/jsx-eslint/eslint-plugin-jsx-a11y/blob/HEAD/docs/rules/lang.md).
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## Rule details
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This rule takes no arguments.
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### Succeed
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```jsx
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<html lang="en">
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<html lang="en-US">
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<html lang={language}>
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```
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### Fail
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```jsx
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<html>
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```
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## Accessibility guidelines
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- [WCAG 3.1.1](https://www.w3.org/WAI/WCAG21/Understanding/language-of-page)
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### Resources
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- [axe-core, html-has-lang](https://dequeuniversity.com/rules/axe/3.2/html-has-lang)
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- [axe-core, html-lang-valid](https://dequeuniversity.com/rules/axe/3.2/html-lang-valid)
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