html,body{ margin:0px; padding:0px; font-family:"Century Gothic", "Trebuchet MS", Arial; font-size:12px; height:100%; }

#cont{ width:100%; height:100%; border:#000066 solid 0px; }
#sx{ float:left; border:#000000 solid 0px; height:100%; width:50%; background:url(../immagini/sfondo_sx.jpg) repeat; position:relative; }
#dx{ margin-left:50%; border:#FF0000 solid 0px; height:100%; background:url(../immagini/sfondo_dx.jpg) repeat; }
	#sfu{ background:url(../immagini/sfumatura.png) repeat-y left top; z-index:100; height:100%; }