            </div>
                  </div>
                </div>

                <!-- flat split buttons -->
                <p class="mt-3 mb-1">Flat split buttons:</p>

                <div class="margin">
                  <div class="btn-group">
                    <button type="button" class="btn btn-default btn-flat">Action</button>
                    <button type="button" class="btn btn-default btn-flat dropdown-toggle dropdown-icon" data-toggle="dropdown">
                      <span class="sr-o