elect only one</legend>
      <div>
        <input id="math" type="checkbox" name="maths" value="on">
        <label for="math">Math</label>
      </div>
      <div>
        <input id="physics" type="checkbox" name="physics" value="on">
        <label for="physics">Physics</label>
      </div>
    </fieldset>
    <fieldset>
      <legend>Select all that apply</legend>
      <div>
        <input id="chemistry" type="radio" name="subject" value="maths">
        <label for="chemistry">Chemistry</label>
      <