a.prvni {
	background-image: url(ukazky/geodeticke-prace-na-stavbach/rymane.jpg);
	display: block;
	width: 120px;
	height: 83px;
}
a.druhy {
	background-image: url(ukazky/geodeticke-prace-na-stavbach/tunel-panenska.jpg);
	display: block;
	width: 120px;
	height: 83px;
}
a.treti {
	background-image: url(ukazky/geodeticke-prace-na-stavbach/vytyceni.jpg);
	display: block;
	width: 120px;
	height: 83px;
}
a.ctvrty {
	background-image: url(ukazky/geodeticke-prace-na-stavbach/zbuzany.jpg);
	display: block;
	width: 120px;
	height: 83px;
}