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require-h1

Warn if there is no h1 element in the document.

This rule is based on Techniques H42 for Success Criterion 1.3.1 in WCAG, Practices for skipping heading level and Web Accessibility Tutorials - Headings.

Split out of the former required-h1 rule, alongside no-duplicate-h1.

❌ Examples of incorrect code for this rule

<html>
<head>
<title>page</title>
</head>
<body>
<main>
<p>text</p>
</main>
</body>
</html>

✅ Examples of correct code for this rule

<html>
<head>
<title>page</title>
</head>
<body>
<main>
<h1>heading</h1>
<p>text</p>
</main>
</body>
</html>

Interface

{
"require-h1": boolean
}

Options

{
"require-h1": {
"options": {
"in-document-fragment"?: boolean
}
}
}
PropertyTypeDefault ValueDescription
in-document-fragmentboolean"false"Set it to true if you want this rule to apply within document fragment rather than the entire document.

Default Severity

warning