Questo è un esempio puramente inventato perchè non ho basi per fare altro:
codice:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="it" xml:lang="it">
<head>
<title></title>
<meta name="description" content="" />
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<style type="text/css">
* {
margin:0;
padding:0;
}
body {
text-align:center;
}
#container {
margin:auto;
width:800px;/*esempio*/
height:600px;/*esempio*/
border:solid 1px #000;
}
#header {
margin:auto;
width:400px;/*esempio*/
height:100px;/*esempio*/
border:solid 1px #000;
}
#header div {
float:left;
width:50%;
height:50%;
background:red;
}
#header .color {
background:green;
}
</style>
</head>
<body>
<div id="container">
<div id="header">
<div class="color"></div>
<div></div>
<div></div>
<div class="color"></div>
</div>
</div>
</body>
</html>