a.edv {
	display:block;
	margin-bottom:0px;
	text-align:center;
	width:200px;
	padding:0px;
	text-decoration:none;
	height: 200px;
	background-image: url(../bilder/sysdes/home_edv_01.jpg);
}
a.edv:link {
	background-image: url(../bilder/sysdes/home_edv_01.jpg);
}
a.edv:visited {
	background-image: url(../bilder/sysdes/home_edv_01.jpg);
}
a.edv:hover {
	background-image: url(../bilder/sysdes/home_edv_02.jpg);
}
a.edv:active {
	background-image: url(../bilder/sysdes/home_edv_02.jpg);
}
a.grafik {
	display:block;
	margin-bottom:0px;
	text-align:center;
	width:200px;
	padding:0px;
	text-decoration:none;
	height: 200px;
	background-image: url(../bilder/sysdes/home_grafik_01.jpg);
}
a.grafik:link {
	background-image: url(../bilder/sysdes/home_grafik_01.jpg);
}
a.grafik:visited {
	background-image: url(../bilder/sysdes/home_grafik_01.jpg);
}
a.grafik:hover {
	background-image: url(../bilder/sysdes/home_grafik_02.jpg);
}
a.grafik:active {
	background-image: url(../bilder/sysdes/home_grafik_02.jpg);
}
a.sysdes {
	display:block;
	margin-bottom:0px;
	text-align:center;
	width:400px;
	padding:0px;
	text-decoration:none;
	height: 200px;
	background-image: url(../bilder/sysdes/home_sysdes_01.jpg);
}
a.sysdes:link {
	background-image: url(../bilder/sysdes/home_sysdes_01.jpg);
}
a.sysdes:visited {
	background-image: url(../bilder/sysdes/home_sysdes_01.jpg);
}
a.sysdes:hover {
	background-image: url(../bilder/sysdes/home_sysdes_02.jpg);
}
a.sysdes:active {
 background-image: url(../bilder/sysdes/home_sysdes_02.jpg;
}