.back_to_top {
  width: 50px;
  height: 50px;
  // border-radius: 50%;
  position: fixed;
  background-color: var(--thirdly) !important;
  color: var(--white);
  bottom: 30px;
  right: 20px;
  padding: 10px;
  opacity: 0;
  transition:
    opacity 0.5s,
    transform;
  transform: translateY(100%);
  transition: all 0.3s ease-in-out;
  border: none;
  z-index: 9999 !important;
  svg {
    font-size: 26px;
    color: var(--white);
  }
  &:hover {
    scale: 1.05;
  }
}

.back_to_top.show {
  opacity: 1;
  transform: translateY(0);
}

.back_to_top.hide {
  opacity: 0;
  transform: translateY(100%);
}