Meinst Du so:
<!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">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Fixed Width CSS Layouts - 1 Column - fw-3-1-col</title>
<link rel="stylesheet" type="text/css" href="main.css" />
<style>
* { padding: 0; margin: 0; }
body {
font-family: Arial, Helvetica, sans-serif;
font-size: 13px;
}
#wrapper {
margin: 0 auto;
width: 922px;
}
#header {
width: 750px;
color: #333;
padding: 10px;
border: 1px solid #ccc;
height: 106px;
margin: 10px 0px 0px 0px;
background: #DAC8BF;
float:left;
}
#navigation {
width: 900px;
color: #333;
padding: 10px;
border: 1px solid #ccc;
margin: 0px 0px 0px 0px;
background: #BD9C8C;
}
#content {
width: 900px;
color: #333;
border: 1px solid #ccc;
background: #F2F2E6;
margin: 0px 0px 0px 0px;
padding: 10px;
height: 350px;
}
#footer {
width: 900px;
color: #333;
border: 1px solid #ccc;
background: #BD9C8C;
margin: 0px 0px 10px 0px;
padding: 10px;
}
div #uhr, div #nochwas
{
margin-left:750px;
}
</style>
</head>
<body>
<!-- Begin Wrapper -->
<div id="wrapper">
<!-- Begin Header -->
<div id="header">
This is the Header
</div>
<!-- End Header -->
<div id="Uhr">sadasd
</div>
<div id="nochwas">asd
</div><br style="clear:both" />
<!-- Begin Naviagtion -->
<div id="navigation">
This is the Navigation
</div>
<!-- End Naviagtion -->
<!-- Begin Content -->
<div id="content">Hauptmenü
</div>
<!-- End Content -->
<!-- Begin Footer -->
<div id="footer">
This is the Footer
</div>
<!-- End Footer -->
</div>
<!-- End Wrapper -->
</body>
</html>