.leaflet-control-layers-group-name {
  font-weight: bold;
  margin-bottom: .2em;
  margin-left: 3px;
}

.leaflet-control-layers-group {
  margin-bottom: .5em;
}

.leaflet-control-layers-scrollbar {
  overflow-y: scroll;
  padding-right: 10px;
}

.leaflet-control-layers-group.group-collapsable.collapsed .leaflet-control-layers-group-collapse,
.leaflet-control-layers-group.group-collapsable:not(.collapsed) .leaflet-control-layers-group-expand,
.leaflet-control-layers-group.group-collapsable.collapsed label:not(.leaflet-control-layers-group-label){
    display: none;
}

.leaflet-control-layers-group-expand-default:before{
    content: url(../css/images/chevron-right.png); 
    width: 12px; 
    display: inline-block; 
    text-align: center;
}
    
.leaflet-control-layers-group-collapse-default:before{
    content: url(../css/images/chevron-down.png); 
    width: 12px; 
    display: inline-block; 
    text-align: center;
}