w">
                <div class="col-xs-6 col-md-3 text-center">
                  <input type="text" class="knob" value="80" data-skin="tron" data-thickness="0.2" data-width="90" data-height="90" data-fgColor="#3c8dbc" data-readonly="true">

                  <div class="knob-label">data-width="90"</div>
                </div>
                <!-- ./col -->
                <div class="col-xs-6 col-md-3 text-center">
                  <input type="text" class="knob" value="60" data-skin="tron" data-thickness