#twocols {
	width: 780px;
	margin: 0 auto;
	background: #E9E9E9 url(bk.gif) right bottom no-repeat;
	border: 1px solid #D4D4D4;
	margin-top: 10px;
}

#leftcol {
	width: 390px;
	float: left;
	padding: 5px;
}

#rightcol {
	width: 390px;
	float: left;
	padding: 5px;
}


	<div id="twocols" class="clearfix">
		
        <div id="leftcol" class="clearfix">
			
  

        </div>    

        <div id="rightcol" class="clearfix">
			
                                
        </div>   

    </div>