 <td>
                      <div class="btn-group">
                        <button type="button" class="btn btn-default">1</button>
                        <button type="button" class="btn btn-default">2</button>

                        <div class="btn-group">
                          <button type="button" class="btn btn-default dropdown-toggle dropdown-icon" data-toggle="dropdown">
                          </button>
                          <div class="dropdown-menu">
                            <a cl