/* Cause leftColumn, midColumn, rightColumn to have a fixed height if the
   user has JavaScript switched off. We use a height of 420px based on a 
   screen height of 768, thus a column height of 420 once the top nav, footer
   and padding has been taken into account. 
*/

div#leftColumn { 	
	height: 420px;
} 

div#midColumn {	
	height: 420px;
}

div#rightColumn {	
	height: 420px;
}