utton" class="btn btn-tool" data-card-widget="remove">
                    <i class="fas fa-times"></i>
                  </button>
                </div>
              </div>
              <div class="card-body">
                <div id="line-chart" style="height: 300px;"></div>
              </div>
              <!-- /.card-body-->
            </div>
            <!-- /.card -->

            <!-- Area chart -->
            <div class="card card-primary card-outline">
              <div class="card-header">