#wrappercards {
	text-align: left;
	margin: 0px auto;
	padding: 0px;
	width: 910px;
	background: url("/path/to/your/background_cols.gif") repeat;
}

#headercards {
	margin: 0 0 0 0;
	border: 1px;
}

#side-acards {
	float: left;
	width: 300px;
}

#side-bcards {
	float: right;
	width: 300px;
}

#contentcards { 
	float: left;
	width: 32%;
}

#footercards {
	clear: both;
}