#goTop {
  display: none;
  position: fixed;
  bottom: 20px;
  right: 4px;
  z-index: 50000;
  font-size: 14px;
  border: none;
  outline: none;
  background-color: red;
  color: white;
  cursor: pointer;
  padding: 0px;
  width: 24px;
  height: 24px;
  border-radius: 4px;
}