     <span class="icon icon-home"></span>
            </button>
            <button class="btn btn-default" type="button">
              <span class="icon icon-folder"></span>
            </button>
            <button class="btn btn-default active" type="button">
              <span class="icon icon-cloud"></span>
            </button>
            <button class="btn btn-default" type="button">
              <span class="icon icon-popup"></span>
            </button>
            <button class="btn btn-defaul