Changes

     </div>

     </div>

<div class="col-md-3 mwbs-color-darker">

<div class="col-md-3 mwbs-color-darker">

      <div class="thumbnail">https://placehold.it/550x550.jpg

      <div class="carousel-caption">

        <h3>Thumbnail label</h3>

<div class="thumbnail">https://placehold.it/550x550.jpg

        <p class="text-justify">Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec id elit non mi porta gravida at

        eget metus. Nullam id dolor id nibh ultricies vehicula ut id elit.</p>

<div class="carousel-caption">

      </div></div>

<h4>Thumbnail label</h4>

    </div>

</div>

</div>

</div>

</div>

</div>

</div>

<div class="col-md-3">

<div class="col-md-3">

<div class="thumbnail">https://placehold.it/550x550.jpg</div>

<div class="thumbnail">https://placehold.it/550x550.jpg</div>