title: Footer should adjust to screen size
body: <p>I did not find a better title to explain my problem. 
  I would like to have a footer, which is constantly at the bottom of the page, (5 px space from the bottom). When the window is made smaller, it should also move. My css so far is:</p>
  
  <pre><code>#footer {
      height:40px;
      width: 1024px;
      background:#FFF;
      padding: 5px;
      clear: both;
  }
  </code></pre>
  
  <p>Like this it is below the last <code>div</code> element.</p>