.leaflet-popup-content {
    max-height: 12em;
    overflow-y: auto;
}

.leaflet-control-layers input {
    display: inline;
    margin-bottom: 9px;
    margin-top: 2px;
}
.leaflet-control-layers label {
    margin-bottom: 0;
}
.leaflet-control-layers-list {
    margin: 0;
}

.leaflet-popup-content {
    max-height: 12em;
    overflow-y: auto;
}


Add Leaflet CSS for Bootstrap compatibility.
Add Leaflet CSS for Bootstrap compatibility.
