.leaflet-control-fullscreen a {
  background:#fff url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABoAAAA0CAYAAABv6A7WAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH5AYKDA8uI6/E9gAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLm3CYwAAADJJREFUaN7tybERAAAIA6D8/2l3YIsidYclpCRp1X0ZGRkZGRkZGRkZGRkZGRkZGRkZGRlpD6m7CQBa8U3VAAAAAElFTkSuQmCC) no-repeat 0 0;
  background-size:26px 52px;
  }
  .leaflet-touch .leaflet-control-fullscreen a {
    background-position: 2px 2px;
    }
  .leaflet-fullscreen-on .leaflet-control-fullscreen a {
    background-position:0 -26px;
    }
  .leaflet-touch.leaflet-fullscreen-on .leaflet-control-fullscreen a {
    background-position: 2px -24px;
    }

/* Do not combine these two rules; IE will break. */
.leaflet-container:-webkit-full-screen {
  width:100%!important;
  height:100%!important;
  }
.leaflet-container.leaflet-fullscreen-on {
  width:100%!important;
  height:100%!important;
  }

.leaflet-pseudo-fullscreen {
  position:fixed!important;
  width:100%!important;
  height:100%!important;
  top:0!important;
  left:0!important;
  z-index:99999;
  }

@media
  (-webkit-min-device-pixel-ratio:2),
  (min-resolution:192dpi) {
    .leaflet-control-fullscreen a {
      background-image:url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADIAAABkCAYAAAD9h7YfAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH5AYKDA8uI6/E9gAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLm3CYwAAAEBJREFUeN7tybERAAAIA6D8/2l3YIsidYclpCRp1X0ZGRkZGRkZGRkZGRkZGRkZGRkZGRkZGRkZGRkZGRkZGRlpDxL7CQB5Gf9dAAAAAElFTkSuQmCC);
    }
  }