zen-8.x-7.0-alpha15/STARTERKIT/components/base/forms/forms-textarea.twig

<div>
  <label for="exampleTextarea">Text area</label>
  <textarea class="{{modifier_class}}" rows="3" id="exampleTextarea"></textarea>
</div>
<div>
  <label for="exampleTextarea">Disabled text area</label>
  <textarea class="{{modifier_class}}" rows="3" id="exampleTextarea" disabled></textarea>
</div>