#mainbox {	
	width: 100%;
	background: #FFFFFF;
	
	/*larghezza minima cross-browser*/
	min-width: 980px!important; 
	width:expression(document.body.clientWidth < 980 ? "980px" : "100%" ); 
}

#boxcentrale {
	width: 100%;
}

/* Classe contenuto*/
#contenuto {
	margin: 5px 15px 15px 15px;
	
	padding-top:3px;
	padding-left:0px;
	padding-right:0px;
	padding-bottom:3px;
	text-align:center;	

	z-index:2;

}