.scrollbar {
  position: fixed;
  width: 219px;
  height: 150px;
  top: 450px;
  left: calc((100% - 1030px) / 2 + 1030px);
  transition: all .4s;
  z-index: 999;
}

.scrollbar.indexscrollbar {
  left: calc((100% - 1030px) / 2 + 1030px);
  /*display: none;*/
}

.scrollbar.themebar {
  display: none;
}