title: Horizontal dropdown menu on Opera
body: <p>I have problem with displaying dropdown menu on my site: <a href="http://lotzen.eu/jkowalczuk/" rel="nofollow">http://lotzen.eu/jkowalczuk/</a>
  I works fine on most browsers: Firefox, IE, Chrome, Safari </p>
  
  <p>Problem starts on Opera. Links disappear when mouse is over the menu item.</p>
  
  <p>I'm new in CSS and i can'f find any solution to this problem. Could someone please help?</p>