title: CSS Z-index sliding images
body: <p>I´ve a litle problem with a website.</p>
  
  <blockquote>
    <p>jn-racing.de</p>
  </blockquote>
  
  <p>The "Banner" bar under the navigation in the background is an <code>.png</code> image with gras but the sliding images are in the front of the png.</p>
  
  <p>Z-index of the sliding images are 3 and the css class "banner" are 99.</p>
  
  <p>The background must be in front of the sliding images.</p>
  
  <p>Thanks</p>