.colmask {
    position:relative;   /* This fixes the IE7 overflow hidden bug and stops the layout jumping out of place */
    clear:both;
    float:left;
    width:100%;         /* width of whole page */
    overflow:hidden;	/* This chops off any overhanging divs */
}

.fullpage {
    background:#fff;
}

.fullpage .col1 {
	margin:0 15px;
	min-height: 300px;
	padding-bottom:1em;
}