Hov lidt problemer grundet manglende doctype ...
og IE ville ikke helt være med til den 0px clearer :/
Så her:
<!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" xml:lang="da"><head><meta http-equiv="content-type" content="text/html; charset=iso-8859-1" /><meta http-equiv="Content-Style-Type" content="text/css" />
<title>CPHBN.DK</title>
<style type="text/css">
body {
margin: 0px 0px 0px 0px;
text-align: center;
background: url('images/background.jpg');
background-repeat: repeat-x;
background-position: top;
background-color: #5C7C8E;
font-family:Verdana;
font-size:11px;
color:#5C7C8E;
}
#content {
background-color:#506F83;
width: 850px;
margin:0px auto;
}
#content2 {
background-color:#506F83;
width: 830px;
margin:0px auto;
}
#contentbottom {
background: #506F83 url('images/contentbottom.jpg');
width: 850px;
height:24px;
margin:0px auto;
}
#logotop{
background-image:url('images/topimage.jpg');
height:200px;
width:830px;
}
#topmenu{
background-color:#3E5F74;
height:30px;
color:white;
font-weight:bold;
width:830px;
font-size:16px;
padding-top:5px;
}
#leftCol{
float:left;
width:150px;
background-color:silver;
text-align:left;
margin-top:0;
margin-right:10px;
}
#contentCol{
float:left;
width:510px;
background-color:white;
text-align:center;
margin-top:0px;
border-left:0px solid #EBEBEB;
}
#rightCol{
float:right;
width:150px;
background-color:silver;
}
#clearer{clear:both;}
</style>
</head>
<body>
<div id="content">
<div id="content2">
<div id="logotop"><img src="images/toplogo.gif" height="200" width="830"/></div>
<div id="topmenu">Jalla</div>
<!-- menu left -->
<div id="leftCol">1<br/><br/><br/><br/><br/><br/><br/></div>
<!-- /menu left -->
<!-- main -->
<div id="contentCol">2<br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/></div>
<!-- /main -->
<!-- menu right -->
<div id="rightCol">3<br/><br/><br/></div>
<!-- /menu right -->
<div id="clearer"> </div>
</div></div>
<div id="contentbottom">a</div></body></html>