.environment-title {
  color: dimgrey;
  margin-bottom: 0;
  font-family: "Courier New", sans-serif;
}

.environment-title {
  color: dimgrey;
  margin-bottom: 0;
  font-family: "Courier New", sans-serif;
}

#tooltip {
  width: 10%;
  height: 10%;
  padding: 1%;

  background-color: rgba(240, 240, 240, 0.8);
  border: 1px solid black;

  text-align: center;
  font-family: Roboto, Arial, sans-serif;
  font-size: 2vmin;
}

Add CSS to the tooltip.
Add CSS to the tooltip.
