Drei Spalten - Schritt5

<style>
  body {
    margin:9px 9px 0 9px;
    padding:0;
    background:white;}
  #ebene0 {
    background:khaki;}
  #ebene1 {
    margin-left:143px;
    padding-left:9px;
    background:white;}
  #ebene2 {
    background:khaki;}
  #ebene3 {
    margin-right:143px;
    padding-right:9px;
    background:white;}
  #main {
    background:white;}
</style>
<body>
  <div id="ebene0">
    <div id="ebene1">
      <div id="ebene2">
        <div id="ebene3">
          <div id="main">
            Hier spielt die Musik.
          </div>
        </div>
      </div>
    </div>
  </div>
</body>