#container {
 width:900px;
 margin-left:auto;
 margin-right:auto;
 text-align:left;
 background:#fff;
}


#wrapper {
 width:740px;
 float:left;
 background:#fff;
}

#boxA {
 background:#fff;
}

#boxB {
 background:#fff;
 width:535px;
 float:right;
}

#boxC {
 background:#fff;
 width:200px;
 float:left;
}

#boxD {
 background:#fff;
 width:150px;
 float:left;
}

#boxE {
 background:#fff;
 width:100%;
 clear:left;
}

#boxF {
 background:#fff;
 width:640px;
 float:left;
}