#button_up {
                                                    padding: 0 !important;
                                                    max-width: 60px;
                                                    position: fixed;
                                                    bottom: 48px;
                                                    right: 48px;
                                                    opacity: 0;
                                                    -webkit-transition: all
                                                      ease-in 0.4s;
                                                    -o-transition: all ease-in
                                                      0.4s;
                                                    transition: all ease-in 0.4s;
                                                  }

                                                  #button_up.visible {
                                                    opacity: 1;
                                                  }
                                                  #footer_group {
                                                    padding-bottom: 108px;
                                                  }

                                                  @media (max-width: 767px) {
                                                    #button_up {
                                                      bottom: 16px;
                                                      right: 16px;
                                                    }

                                                    #footer_group {
                                                      padding-bottom: 80px;
                                                    }
                                                  }