6 col-md-3">
          <a class="thumbnail" href="#">
            <img data-src="holder.js/100%x180" alt="...">
          </a>
        </div>
        <div class="col-xs-6 col-md-3">
          <a class="thumbnail" href="#">
            <img data-src="holder.js/100%x180" alt="...">
          </a>
        </div>
        <div class="col-xs-6 col-md-3">
          <a class="thumbnail" href="#">
            <img data-src="holder.js/100%x180" alt="...">
          </a>
        </div>
      </div>
      <h6>Custom co