How would I change this to make the middle div expand vertically to fill the white space?
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
<style type="text/css">
body,td,th {
font-family: Tahoma, Geneva, Verdana, sans-serif;
}
html,body {
margin:0;
padding:0;
height:100%; /* needed for container min-height */
}
#container {
position:relative; /* needed for footer positioning*/
margin:0 auto; /* center, not in IE5 */
width:100%;
height:auto !important; /* real browsers */
height:100%; /* IE6: treaded as min-height*/
min-height:100%; /* real browsers */
}
#header {
height: 150px;
border-bottom: 2px solid #ff8800;
position: relative;
background-color: #c97c3e;
}
#middle {
padding-right: 90px;
padding-left: 90px;
padding-top: 35px;
padding-bottom: 43px;
background-color: #0F9;
}
#footer {
border-top: 2px solid #ff8800;
background-color: #ffd376;
position:absolute;
width:100%;
bottom:0; /* stick to bottom */
}
</style>
</head>
<body>
<div id="container">
<div id="header">
Header
</div>
<div id="middle">
Middle
</div>
<div id="footer">
Footer
</div>
</div>
</body>
</html>