style.css

body, html {
    padding: 0;
    margin: 0;
    width: 100%;
    height: 100%;
}
#map {
    width: 100%;
    height: 100%;
}

.map-legend {
  position: fixed;
  bottom: 65px;
  background: white;
  right: 10px;
  padding: 10px;
  font-family: Arial;
  border-radius: 5px;
}

.map-legend .legend-title {
  text-align: left;
  margin-bottom: 10px;
  font-weight: bold;
  font-size: 90%;
}

.map-legend .legend-scale ul {
  margin: 0;
  margin-bottom: 5px;
  padding: 0;
  float: left;
  list-style: none;
}

.map-legend .legend-scale ul li {
  font-size: 80%;
  list-style: none;
  margin-left: 0;
  line-height: 18px;
  margin-bottom: 2px;
}

.map-legend ul.legend-labels li span {
  display: block;
  float: left;
  height: 16px;
  width: 30px;
  margin-right: 5px;
  margin-left: 0;
  border: 1px solid #999;
}

.map-legend .legend-source {
  font-size: 70%;
  color: #999;
  clear: both;
}

.map-legend a {
  color: #777;
}

#map-color1 {
  /*background-color:#2BB52B;*/
  /*opacity: 0.5;*/
  background-color:rgba(43, 181, 43, 0.5);
}
#map-color2 {
  background-color:rgba(12, 89, 12, 0.5);
}
#map-color3 {
  background-color:rgba(255, 165, 0, 0.6);
}
#map-color4 {
  background-color:rgba(255, 0, 0, 0.5);
}
#map-color5 {
  background-color:rgba(236, 30, 3, 0.7);
}