.leaflet-control-zoom-display {
    background-color: #fff;
    width: 26px;
    height: 26px;
    text-align: center;
    color:black;
    line-height:26px;
    cursor:default;
}


.leaflet-touch .leaflet-control-zoom-display {
    width: 34px;
    height: 34px;
    line-height:30px;
}