choropleth legend demo

Legend.css

.legend {
  position: absolute;
  z-index: 999;
  right: 150px;
  bottom: 140px;
  padding:20px 10px;
  box-shadow: 0 0 5px 0 rgba(184, 140, 140, 0.3);
  font-size:12px;
  letter-spacing:2px;
  background: rgba(0,0,0,0.8);
  border-radius:5px;
  width: 16%;
}
.legend > div {
  color:white;
  position: relative;
  display: flex;
  height: 20px;
  padding: 0 10px;
}
.legend > div::before {
  content: "";
  background-color: var(--color);
  left: 0;
  top: 0;
  width: 20px;
  height: 20px;
  margin-right: 5px;
  
}
@media (max-width: 768px) {
  .legend > div::before {
  width: 10px;
  height: 10px;

 
}
.legend {
  left: 38px;
  bottom: 100px;
  font-size:10px;
  letter-spacing:0px;
  width: 30%;
  height:15%;
}

}