.icon-drop, .icon-road, .icon-bike, .icon-tree {
	background-position: 0 0;
	background-repeat: no-repeat;
	background-size: 100%;
	display: block;
	width: 50px;
	height: 50px;
}

/*
.icon-road:hover { background-position: 0 100%; }
.icon-drop:hover { background-position: 0 98%; }
.icon-bike:hover { background-position: 0 98%; }
.icon-tree:hover { background-position: 0 98%; }
*/

.icon-drop { background-image: url(icon-drop.png); }
.icon-road { background-image: url(icon-road.png); }
.icon-bike { background-image: url(icon-bike-road.png); }
.icon-tree { background-image: url(icon-tree.png); }