.container { position:relative; padding:0 0 0 55px; }
#html {
    width:600px;
}
#head {
    width:600px;
}
#sidebar {
    position:absolute;
    top:90px;
	width:600px;
	font-size: 20px;
}

#content {
    position:absolute;
    top:450px;
	width:600px;
    resize: both;
    overflow: auto;
    background-color: sandybrown;
}
#footer {
   position:absolute;
   bottom:0;
   height:60px;
}