.axis text,
.cue text {
  font: 12px sans-serif;
}

.axis line,
.axis path,
.intersect {
  fill: none;
  stroke: #000;
}

.cue {
  width: 20px;
  height: 20px;
}
.cue text {
  display: none;
}
.cue:hover text {
  display: block;
}

.intersect {
  fill: none;
  stroke: #000;
  stroke-dasharray: 2,2;
}