id-no-dup

Disallow the duplication of an id inside an html file.

The following patterns are considered violations:

  <div id="foo"></div>
  <div id="foo"></div>

  <div id="foo">
    <div id="foo"></div>
  </div>

The following patterns are not considered violations:

  <div id="foo"></div>
  <div id="bar"></div>

  <div id="foo">
    <div id="bar"></div>
  </div>