table {
	text-align: left;
	margin: 0px;
	padding: 0px;
	position: absolute;
	left: 0px;
	top: 0px;
	padding: 0px;
	margin: 0px;
}
.us {
	display:block;
	background-image: url(../fotos/schwangerschaft/ultraschall_11_ssw.jpg);
	height: 170px;
	width: 222px;
}
.us:hover {
	background-image: url(../fotos/schwangerschaft/ultraschall_11_ssw1.jpg);
}
.usa {
	display:block;
	background-image: url(../fotos/schwangerschaft/ultraschall_15_ssw.jpg);
	height: 170px;
	width: 222px;
}
.usa:hover {
	background-image: url(../fotos/schwangerschaft/ultraschall_15_ssw1.jpg);
}
.usb {
	display:block;
	background-image: url(../fotos/schwangerschaft/ultraschall_23_ssw.jpg);
	height: 170px;
	width: 232px;
}
.usb:hover {
	background-image: url(../fotos/schwangerschaft/ultraschall_23_ssw1.jpg);
}
a {
	text-decoration: none;
	cursor: default;
}