CFormSelect aria-label=small select example how to do small size scale

To make the select element smaller in size, you can add the Bootstrap class "form-select-sm" to the select element, like this:

<select class="form-select form-select-sm" aria-label="Small select example">
  <option selected>Open this select menu</option>
  <option value="1">One</option>
  <option value="2">Two</option>
  <option value="3">Three</option>
</select>

This will apply the smaller size styling to the select element.