.tooltipPopup > .leaflet-popup-content-wrapper {
  border-radius: 4px;
  box-shadow: 0 1px 1px rgba(0,0,0,0.4);
}
.tooltipPopup > .leaflet-popup-content-wrapper > .leaflet-popup-content {
  margin: 6px 6px;
  text-align:center;
}