rect {
	stroke: white;
	fill: #cecece;
}
rect.active {
	fill: blue;
}
rect:hover {
	fill: rgb(231,231,231);
}
rect.active:hover {
	fill: darkblue;
	/* for when we have click/touch events */
	/*cursor: pointer;*/
}
.tick text {
	font-family: "Helvetica Neue",Helvetica,Arial,sans-serif;
	font-size: 16px;
	fill: #3c3c3c;
}
.axis--y > .domain {
	display: none;
}
.axis--y > .tick line {
	stroke: #eee !important;
}

#symbol {
  text-align: center;
  background-color: lightgray;
  padding: 1ex;
  width: 6ex;
  font-size: 500%;
}