.marker-cluster {
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.marker-cluster div {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  text-align: center;
  border-radius: 50%;
  font: 15px sans-serif;
}
.marker-cluster span {
  display: flex;
  align-items: center;
  justify-content: center;
}

.marker-cluster-small {
  background-color: #b3fd02;
  color: white;
  font-weight: bold;
  text-decoration: none;
}
.marker-cluster-small div {
  background-color: #000;
  color: white;
  font-weight: bold;
  text-decoration: none;
}

.marker-cluster-medium {
  background-color: #4c02fd;
  color: white;
  font-weight: bold;
  text-decoration: none;
}
.marker-cluster-medium div {
  background-color: #000;
  color: white;
  font-weight: bold;
  text-decoration: none;
}

.marker-cluster-large {
  background-color: #fd4c02;
  color: white;
  font-weight: bold;
  text-decoration: none;
}
.marker-cluster-large div {
  background-color: #000;
  color: white;
  font-weight: bold;
  text-decoration: none;
}

/* 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);
}