div#wrapper{
width:90%;
}

div#main{

margin: 0 0 0 250px;
}

div#sub{
position: fixed !important; 
position: absolute;  
top: 10;  
left: 0;  

float:left;
width:242px;
}

div#container:after{
 display:block;
 clear:both;
 height:0;
 visibility:hidden;
content:".";
}