lass="col-md-6">
                  <div class="card">
                    <h5 class="card-header">Checkbox and radio addons</h5>
                    <div class="card-body demo-vertical-spacing demo-only-element">
                      <div class="input-group">
                        <div class="input-group-text form-check mb-0">
                          <input
                            class="form-check-input m-auto"
                            type="checkbox"
                            value=""
      