.float{clear:both;}
#wrapper{width:950px;height:950px;background:#21E9E9;}
#header{width:850px;height:100px;background:#B39DDB;float:right;}
.content-area{background:#8BC34A;}
#left-sidebar{width:100px;height:950px;background:#F06292;float:left;}
#post-content{width:850px;height:800px;background:#8BC34A;float:right;}
#footer{width:850px;height:50px;background:#B39DDB;float:right;}