.d3-tip {
  line-height: 1;
  line-height: 24px;
  font-size: 18px;
  font-family: Helvetica, Arial;
  background: rgba(0, 0, 0, 0.8);
  color: #fff;
  border-radius: 2px;
  pointer-events: none;
  max-width: 800px;
  padding: 20px 15px 20px 15px;
}

/* Creates a small triangle extender for the tooltip */
.d3-tip:after {
  box-sizing: border-box;
  display: inline;
  font-size: 20px;
  width: 100%;
  line-height: 1;
  color: rgba(0, 0, 0, 0.8);
  position: absolute;
  pointer-events: none;
}

/* Northward tooltips */
.d3-tip.n:after {
  content: "\25BC";
  margin: -3px 0 0 0;
  top: 100%;
  left: 0;
  text-align: center;
}

/* Eastward tooltips */
.d3-tip.e:after {
  content: "\25C0";
  margin: -4px 0 0 0;
  top: 50%;
  left: -8px;
}

/* Southward tooltips */
.d3-tip.s:after {
  content: "\25B2";
  margin: 0 0 1px 0;
  top: -8px;
  left: 0;
  text-align: center;
}

/* Westward tooltips */
.d3-tip.w:after {
  content: "\25B6";
  margin: -4px 0 0 -1px;
  top: 50%;
  left: 100%;
}

.tooltip-title {
  text-align: center;
  font-weight: bold;
  white-space: nowrap;
  /* I don't understand why this doesn't work */
  text-overflow: ellipsis;
  overflow: hidden;
}

.tooltip-metric-name {
  padding-right: 25px;
}

.tooltip-metric-value {
  text-align: right;
}