      <div class="card-tools">
                  <button type="button" class="btn btn-tool" data-card-widget="collapse">
                    <i class="fas fa-minus"></i>
                  </button>
                  <button type="button" class="btn btn-tool" data-card-widget="remove">
                    <i class="fas fa-times"></i>
                  </button>
                </div>
              </div>
              <div class="card-body">
                <div id="donut-chart" style="height: 300px;"></div>