MapComplete/vendor/MarkerCluster.Default.css

.marker-cluster-small {
    background-color: rgba(181, 226, 140, 0.6);
}

.marker-cluster-small div {
    background-color: rgba(110, 204, 57, 0.6);
}

.marker-cluster-medium {
    background-color: rgba(241, 211, 87, 0.6);
}

.marker-cluster-medium div {
    background-color: rgba(240, 194, 12, 0.6);
}

.marker-cluster-large {
    background-color: rgba(253, 156, 115, 0.6);
}

.marker-cluster-large div {
    background-color: rgba(241, 128, 23, 0.6);
}

/* IE 6-8 fallback colors */
.leaflet-oldie .marker-cluster-small {
    background-color: rgb(181, 226, 140);
}

.leaflet-oldie .marker-cluster-small div {
    background-color: rgb(110, 204, 57);
}

.leaflet-oldie .marker-cluster-medium {
    background-color: rgb(241, 211, 87);
}

.leaflet-oldie .marker-cluster-medium div {
    background-color: rgb(240, 194, 12);
}

.leaflet-oldie .marker-cluster-large {
    background-color: rgb(253, 156, 115);
}

.leaflet-oldie .marker-cluster-large div {
    background-color: rgb(241, 128, 23);
}

.marker-cluster {
    background-clip: padding-box;
    border-radius: 20px;
}

.marker-cluster div {
    width: 30px;
    height: 30px;
    margin-left: 5px;
    margin-top: 5px;

    text-align: center;
    border-radius: 15px;
    font: 12px "Helvetica Neue", Arial, Helvetica, sans-serif;
}

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