html,body{height:100%}header{position:relative;margin-bottom:3em}.wrap{position:relative;width:1000px;height:auto;min-height:100%;margin:0 auto;background:url(../../img/header/bg.jpg) no-repeat}section,nav,aside{padding-bottom:150px}section{float:left;width:100%}.wrap:after,section:after{content:".";display:block;clear:both;visibility:hidden;line-height:0;height:0;overflow:hidden}section>*{margin-left:240px;margin-right:240px}nav{width:204px;margin-left:-100%;float:left}aside{width:204px;margin-left:-204px;float:left}.footerSpacer{clear:both;height:150px}