input-radio-required.html

Enable keyboard shortcuts

<!DOCTYPE html>

<html>

  <!-- Test: if one radio in a group has the required attribute and no radio is

             checked, all radio in the group should suffer from being missing. -->

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

  <body>

    <input class='invalid' id='i1' name='foo' type='radio' required>

    <input class='invalid' id='i2' name='foo' type='radio'>

  </body>

</html>