#tooltip {
  position: absolute;
  padding: 6px 10px;
  background: rgba(0, 0, 0, 0.8);
  color: #fff;
  border-radius: 4px;
  font-size: 12px;
  pointer-events: none;
  white-space: nowrap;
  z-index: 20;
  display: none;
}