.marker-cluster div {
  width: 34px;
  height: 34px;
  color: white;
  margin-left: 3px;
  margin-top: 3px;
  box-shadow: inset 0 0 0 30px #00569c, 0 0 0 4px rgba(0, 0, 0, 0.2);
  border: 2px transparent solid;
  text-align: center;
  border-radius: 50%; }

.marker-cluster_hover div {
  box-shadow: inset 0 0 0 30px #404040, 0 0 0 4px rgba(0, 0, 0, 0.2); }

.marker-cluster span {
  line-height: 30px;
  font-size: 13px; }