.chartist-tooltip {
  position: absolute;
  z-index: 1;
  display: inline-block;
  padding: 3px 8px;
  font-size: 12px;
  font-weight: 400;
  color: #fff;
  text-align: center;
  pointer-events: none;
  background-color: rgba(0, 0, 0, .7);
  border-radius: 3px;
}