<div class="container-fluid">

             <div class="row">

                  <div class="col-3">

                       <div id="the_html">

                            <select id="the_select" class="mdb-select md-form colorful-select dropdown-primary" >

                               <option value="0" disabled selected>Select option...</option>

                            </select>

                      <label class="mdb-main-label"  for="the_select">Options available</label>

                       </div>

                  </div>

                  <div class="col">

                        <button id="addOption" type="button" class="btn btn-primary">Add option</button>

                  </div>

             </div>

        </div>