ptgroup disabled="disabled" label="disabled">
      <option>Hidden</option>
    </optgroup>
    <optgroup label="Fruit">
      <option>Apple</option>
      <option>Orange</option>
    </optgroup>
    <optgroup label="Vegetable">
      <option>Corn</option>
      <option>Carrot</option>
    </optgroup>
  </select>

  <hr>
  <select id="first-disabled2" class="form-select" multiple data-hide-disabled="true" data-size="5">
    <option>Apple</option>
    <option>Banana</option>
    <option>Orange</option>
    <