<div class="row">

   <div class="col-6">

     <select class="mdb-select md-form md-selected colorful-select dropdown-primary" name="region" required>

       <option></option>

       <option>1</option>

       <option>2</option>

       <option>3</option>

     </select>

     <label class="mdb-main-label">Region *</label>

   </div>

</div>