button type="button" class="btn btn-box-tool" data-widget="collapse"><i class="fa fa-minus"></i>
                </button>
                <div class="btn-group">
                  <button type="button" class="btn btn-box-tool dropdown-toggle" data-toggle="dropdown">
                    <i class="fa fa-wrench"></i></button>
                  <ul class="dropdown-menu" role="menu">
                    <li><a href="#">Action</a></li>
                    <li><a href="#">Another action</a></li>
                 