.leaflet-control-defaultextent {
	width: 26px !important;
	height: 26px !important;
	border-bottom: 1px solid #ccc;
	box-shadow: none; 
    border-radius: initial;
}

.leaflet-control-defaultextent-toggle {
	background-color: transparent !important;
  text-indent: -9999px;
  white-space: nowrap;
  background-image: url('leaflet.defaultextent.png');
  width: 26px !important;
  height: 28px !important;
  display: block;
  
}

/* CSS for high-resolution devices */
@media only screen and (-Webkit-min-device-pixel-ratio: 1.5),
only screen and (-moz-min-device-pixel-ratio: 1.5),
only screen and (-o-min-device-pixel-ratio: 3/2),
only screen and (min-device-pixel-ratio: 1.5) {
    .leaflet-control-defaultextent-toggle {
        background-image: url('leaflet.defaultextent@2X.png');
        background-size: 26px 26px;
        background-repeat: no-repeat;
        
    }
}