.leaflet-control-layers-toggle {
    background-image: url(../images/exclamation-mark.png);
    width: 36px;
    height: 36px;
}
.leaflet-retina .leaflet-control-layers-toggle {
    background-image: url(../images/exclamation-mark.png);
    background-size: 32px 32px;
}

.leaflet-container a.leaflet-popup-close-button {
    font-size: 22px;
    top: 2%;
    right: 1.5%;
}

.leaflet-popup-content {
    font-size: 13.5px;
}