<label class="form-label" for="textarea">
  Why can't you provide a National Insurance number?
</label>
<textarea class="form-control" name="textarea" id="textarea"></textarea>

<label class="form-label" for="textarea">
  Why can't you provide a National Insurance number?
</label>
<textarea class="form-control form-control-3-4" name="textarea" id="textarea" rows="5"></textarea>

Make textareas wider than standard form controls
Make textareas wider than standard form controls

Form controls are 50% of the page width, make textures 75% of the page
width - to better fit paragraphs of text.

Add rows=“5” to increase the height of the textarea. The alternative is
to set a height - but this could be a breaking change (unless it’s a
set via a new optional class).
