no-multiple-h1

This rule disallows multiple <h1>.

How to use

.eslintrc.js

module.exports = {
  rules: {
    "@html-eslint/no-multiple-h1": "error",
  },
};

This rule disallows the use of multiple <h1> tags.

Examples of incorrect code for this rule:

<html>
  <body>
    <h1>head</h1>
    <h1>head</h1>
  </body>
</html>

Examples of correct code for this rule:

<html>
  <body>
    <h1>head</h1>
  </body>
</html>