body {
  margin: 0;

}

canvas {
  width: 100%;
  height: 100%;
}

#divLegend {
  position: absolute;
  pointer-events: none; /*pass mouse events to parent*/
  top: 15px;
  bottom: 15px;
  right: 15px;
  color: #999999;
  opacity: 1;
  z-index: 1;
  overflow: visible;
  text-align: right;
}
