body {
  margin: 20px;
}
h3 {
  cursor: pointer;
  display: inline;
}
.color-rect {
  display: inline-block;
  width: 100px;
  height: 50px;
  margin: 5px;
  text-align: center;
  line-height: 50px;
  font-weight: bold;
  color: white;
  border: 1px solid #000;
}
.color-square {
  display: inline-block;
  width: 50px;
  height: 50px;
  margin: 5px;
  text-align: center;
  line-height: 50px;
  font-weight: bold;
  color: white;
  border: 1px solid #000;
}
#details-container {
  margin-top: 20px;
}
.highlight {
  outline: 4px solid yellow;
  box-shadow: 0 0 10px rgba(255, 255, 0, 0.8);
}

#mapping-count {
  font-weight: bold;
  margin-top: 10px;
}