T

<div id="header"><img src="logo.gif" alt="logo" /></div>
<div id="contain">
<div id="con">c</div>
<div id="nav">b</div>

body {margin: 0; padding: 0; background: #eee;}
#header {
background-color: #0a486f;
width: 100%;
height: 80px;
}
#nav {
width: 15%;
height: 100%;
background: #eee;
border-right: 1px solid #ccc;
padding-left: 10px;
padding-top: 5px;
float: left;
}
#con {
width: 85%;
height: 100%;
background: #eee;
float: right;
}

XHTML 1.0 TRANSITIONAL