#scroll-to-top {
  position: fixed;
  bottom: 24px;
  right: 20px;
  width: 38px;
  height: 38px;
  text-align: center;
  border-radius: 50%;
  background-color: rgba(0, 0, 0, .3);
  color: #fff;
  padding-top: 6px;
  z-index: 1;
}