#" class="btn btn-default">7</a>
                </div>

                <div class="btn-group">
                  <a href="#" class="btn btn-default">8</a>
                  <div class="btn-group">
                    <a href="#" class="btn btn-default dropdown-toggle" data-toggle="dropdown">
                      Dropdown
                      <span class="caret"></span>
                    </a>
                    <ul class="dropdown-menu">
                      <li><a href="#">Dropdown link</a></li>
   