I'm sure it has always been there but I just noticed the messages on the right side of the tool bar. It tells you what mode you are in (ex. quirks, standard) and gives you any CSS or JS errors. I have noticed on many pages that it says
CSS Error: Error in parsing value for property 'display'. Declaration dropped
I am seeing this on many sites. I can't find the word heigth anywhere.
3:21 pm on Jul 10, 2007 (gmt 0)
Most of the time this error comes from display:inline-block; which is used in the clearfix method, sets hasLayout for Internet Explorer and is dropped by Mozilla.