title: Thumbnails cover fixed navigation bar when hovered over
body: <p>I've applied a grayscale to color hover effect on my gallery thumbnails on my site, and they seem to be working fine.  HOWEVER, they are interfearing with the fixed navigation bar at the top.</p>
  
  <p>For example, if you scroll down to see the lower "graphic design" thumbnails &amp; want to use the navigation bar to move on to the "art" section, it's impossible because the colored hover thumbnail gets in the way! Does anyone happen to know a solution to this problem?  Thanks!</p>