.leaflet-grid-label .gridlabel-vert {
    margin-left: 8px;
    -webkit-transform: rotate(90deg);
    transform: rotate(90deg);
}

.leaflet-grid-label .gridlabel-vert,
.leaflet-grid-label .gridlabel-horiz {
    padding-left:2px;
    text-shadow: -2px 0 #FFFFFF, 0 2px #FFFFFF, 2px 0 #FFFFFF, 0 -2px #FFFFFF;
}