Hi,

MainMenu a:hover .overlay {

display: block;
}

  
Es gibt kein Element in HTML mit dem Tagnamen „MainMenu“.  
  
MfG ChrisB  
  

-- 
Autocomplete has spoiled me to a point where it happens every so often that I encounter a CAPTCHA, and I just type in the first character … and then wait for the rest of the code to be automatically suggested :/