#jumpToTop {
  background-color: #0037ff;
  position: fixed;
  bottom: 44px;
  bottom: calc(env(safe-area-inset-bottom) + 44px);
  right: 10px;
  width: 64px;
  height: 64px;
  border-radius: 32px;
  box-shadow: 1px 1px 10px 2px rgba(0,0,0,0.4);
}
#jumpToTop span {
  position: fixed;
  bottom: 62px;
  bottom: calc(env(safe-area-inset-bottom) + 62px);
  right: 12px;
  color: white;
  font-size: 30px;
}