.pagetop {
  height: 50px;
  width: 50px;
  position: fixed;
  right: 30px;
  bottom: 30px;
  background: var(--button-bg-color);
  border: solid 2px #000;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 2;
  box-shadow: 0 4px 6px rgb(0 0 0 / 30%);
}

.pagetop_arrow {
  height: 10px;
  width: 10px;
  border-top: 3px solid #000;
  border-right: 3px solid #000;
  transform: translateY(20%) rotate(-45deg);
}

@media (hover: hover) and (pointer: fine) {
  .pagetop:hover,
  .pagetop:hover .pagetop_arrow {
    border-color: var(--button-bg-color);
  }
}