/* Tooltip container */
.agg-tooltip {
  position: relative;
  display: inline-block;
  /* border-bottom: 1px dotted black;  If you want dots under the hoverable text */
}

/* Tooltip text */
.agg-tooltip .agg-tooltiptext {
  visibility: hidden;
  width: 200px;
  background-color: black;
  color: #fff;
  text-align: center;
  padding: 5px 0;
  border-radius: 6px;

  /* Position the tooltip text */
  position: absolute;
  z-index: 1;
  top: 125%;
  left: 50%;
  margin-left: -10px;

  /* Fade in tooltip */
  opacity: 0;
  transition: opacity 0.3s;
}

/* Tooltip arrow */
.agg-tooltip .agg-tooltiptext:after {
  content: " ";
  position: absolute;
  bottom: 100%;  /* At the top of the tooltip */
  left: 50%;
  margin-left: -5px;
  border-width: 5px;
  border-style: solid;
  border-color: transparent transparent black transparent;
}

/* Show the tooltip text when you mouse over the tooltip container */
.agg-tooltip:hover .agg-tooltiptext {
  visibility: visible;
  opacity: 1;
}