.tabelle_zentrum_illu {
	background-color: #FFF;
	background-image: url(images/HG_flaeche_weiss.gif);
	background-repeat: no-repeat;
	background-position: left top;
}
.tabelle_zentrum_intro {
	background-image: url(images/HG_intro.gif);
	background-repeat: no-repeat;
	background-position: left top;
	background-color: #000;
}
.tabelle_zentrum_uebrige {
	background-color: #999;
	background-image: url(images/HG_stile.gif);
	background-repeat: no-repeat;
	background-position: left top;
}