//  go to top area start
.go-to-top {
  position: fixed;
  display: block;
  font-size: 16px;
  z-index: 999;
  right: 20px;
  bottom: 40px;
  width: 40px;
  height: 40px;
  line-height: 40px;
  border-radius: 50%;
  color: $white-100;
  background-color: rgba(25, 113, 189, 0.5);
  border: none;
  opacity: 0;
  cursor: pointer;
  transition: opacity 0.4s linear;

  &.is-visible {
    opacity: 1;
  }
}

//  go to top area end