div.container
{

position:absolute; top:10; left:50;
width:900px; height:400px;
margin:0px;
border:1px solid gray;
line-height:150%;
}
div.header,div.footer
{
padding:0.5em;
color:white;
background-color:gray;
clear:left;
}




h1.header
{
padding:0;
margin:0;
}
div.left
{
float:left;
width:240px; 

margin:0;
padding:1em;
}


div.content
{

width:650px; height:550px;
position:absolute; top:90px; left:0px;

margin-left:240px;
background-color:gray;
border-left:1px solid gray;
padding:1em;
overflow:auto;
}