button-disabled-fieldset-1.html

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<!DOCTYPE html>

<html>

  <!-- Test: if button has a disabled fieldset ancestor, it is barred from

             constraint validation and should not be affected by :valid

             pseudo-class. -->

  <link rel='stylesheet' type='text/css' href='style.css'>

  <body>

    <fieldset disabled>

      <fieldset>

        <button class='notvalid'></button>

      </fieldset>

    </fieldset>

  </body>

</html>