legend {
	font-weight: bold;
	font-size: 14px;
}


.tooltip {
  position: relative;
  display: inline-block;
  border-bottom: 1px dotted black;
}

.tooltip .tooltiptext {
  visibility: hidden;
  width: 320px;
  background-color: rgb(0,0,56);
  color: #fff;
  text-align: center;
  border-radius: 6px;
  padding: 10px 10px;
  border-color:rgb(255,255,255);

  /* Position the tooltip */
  position: absolute;
  z-index: 1;
}

.tooltip:hover .tooltiptext {
  visibility: visible;
}