.scroll_top_button
{
  width: 50px;
  height: 50px;
  display: none;
  align-items: center;
  justify-content: center;
  background: var(--default-bg-color);
  border-radius: 10px;
  position: fixed;
  right: 100px;
  bottom: 50px;
  cursor: pointer;
  z-index: 99999;
}

.scroll_top_button i
{
  font-size: 20px;
  color: #fff;
}