ol-xs-6 col-md-3 text-center">
                  <input type="text" class="knob" value="40" data-width="90" data-height="90" data-fgColor="#00c0ef">

                  <div class="knob-label">Disk Space</div>
                </div>
                <!-- ./col -->
              </div>
              <!-- /.row -->

              <div class="row">
                <div class="col-xs-6 text-center">
                  <input type="text" class="knob" value="90" data-width="90" data-height="90" data-fgColor="#932ab6