body {
  padding: 0;
  font-family: Sans-Serif;
  font-size: 80%;
  background-color: #001;
}

.d3-tooltip {
  color: lightgrey;
  background: rgba(0, 0, 100, .7);
  padding: 5px;
  border-radius: 3px;
  font: 11.5px sans-serif;
  text-align: center;
}

.fade-enter,
.fade-leave.fade-leave-active {
  opacity: 0.01;
}

.fade-leave,
.fade-enter.fade-enter-active {
  opacity: 1;
}

.fade-enter,
.fade-leave {
  transition: opacity .35s ease-in;
}