md-tooltip {
  position: absolute;
  z-index: 100;
  left: 50%;
  bottom: calc(100% + 6px);
  transform: translateX(-50%);
  display: block;
  width: max-content;
  max-width: 260px;
  padding: 0 8px;
  border-radius: 4px;
  background-color: #616161;
  color: #fff;
  font-size: 10px;
  font-weight: 500;
  line-height: 22px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.15s ease;
}

:hover > md-tooltip,
:focus > md-tooltip,
:focus-within > md-tooltip {
  opacity: 0.9;
  visibility: visible;
}