.leaflet-control-layers-group-name{font-weight:700;margin-bottom:.2em;display:block; }
.leaflet-control-layers-group, .leaflet-control-layers-base{margin-bottom:.5em; font-size:1.2em;}
.leaflet-control-layers-group label{padding-left:.5em}
.leaflet-retina .leaflet-control-layers-toggle, .leaflet-control-layers-toggle {
    background-image:url(../images/layerstx.png);
    background-size: contain;
    background-repeat: no-repeat;
    height:26px;
    width: 110px;
    margin: 5px 8px;
}