<select class="select" data-mdb-size="lg">

  <option value="1">One</option>

  <option value="2">Two</option>

  <option value="3">Three</option>

  <option value="4">Four</option>

  <option value="5">Five</option>

</select>

​

<select class="select" data-mdb-size="sm">

  <option value="1">One</option>

  <option value="2">Two</option>

  <option value="3">Three</option>

  <option value="4">Four</option>

  <option value="5">Five</option>

</select>

​