title: Superfish menu does flicker when moving mouse pointer along border
body: <p>The superfish menu here does flicker when moving the mouse pointer along the border: <a href="http://www.kine-stammheim.ch/" rel="nofollow">http://www.kine-stammheim.ch/</a>
  The css file is here: <a href="http://www.kine-stammheim.ch/css/navigation/superfish.css" rel="nofollow">http://www.kine-stammheim.ch/css/navigation/superfish.css</a></p>
  
  <p>My guess was that the hover item would have a different size than the standard and this is why it would flicker. But I cannot find the issue...</p>
  
  <p>Who can help?</p>