3 kolonne Layout med fixed sider

<style type="text/css">
body {
    margin: 0;
    padding: 0;
}
#wrapper {
    width: 800px;
    margin: 0 auto;
    background: #f0f0f0;
}
#content {
    width: 560px;
    margin: 0 120px;
    display: inline-block;
    background: yellow;
}
#leftBar {
    position: fixed;
    width: 100px;
    display: inline-block;
    background: green;
}
#rightBar {
    position: fixed;
    width: 100px;
    margin-left: -100px;
    display: inline-block;
    background: blue;
}
</style>

<div id="wrapper">
    <div id="leftBar">Left
        <div style="height:400px">Indhold</div>
    </div>
    <div id="content">Content
        <div style="height:1000px">Indhold</div>
    </div>
    <div id="rightBar">Right
        <div style="height:400px">Indhold</div>
    </div>
</div>