I am working on a skin that is giving me a bit of a problem in Firefox.  During the process of trying to figure out why my visablility options are not working on the skin (they collapse feature on modules), I found something interesting and I am not sure if it is my system, version of Firefox or something in DNN since it occures even on this site.

In Firefox (I am using 1.5.0.10) the Java Console shows an error after rendering a page at the end of the list:

Error: Error in parsing value for property 'vertical-align'.  Declaration dropped.
Source File: http://www.dotnetnuke.com/
Line: 0

This is seems to appear on many DotNetNuke sites that I have tried while others it does not.  Of course, the error might be meaningless, but it is strange how it appears as if on line zero and always at the bottom of the list (all those other parsing errors such as cusor statements).

For me it is even more interesting as when I click the collapse icon on a panel in my skin, that error shows up once, but if I click again, nothing happens in the view, but in the Javascript Console it is flooded with this same error and does not seem to stop.  I have to refresh the page to stop the flood of issues.

Anyone have information on this?  For those with Firefox 1.5.0.10 (or later versions), do you get the same error in the Javascript Console when viewing this site or others?

Well, the DotNetNuke site uses HTML 4.0 Transitional and generates this error.  I was thinking that the error might show up based on doc type, but so far I have not find any link as older DNN sites do not seem to generate this error and I think they were HTML 4.0, but will have to check more to make sure.

I have tried a slew of non-dnn sites, but have not found one yet that generates this error.

Oh yeah, I have verified this occurs with FireFox 1.5.x and 2.0x.

Finally tracked down that error.  It seems to be in the spmenu.js file in lines 237 and 248 where it has "vertical-align: center" for Firefox it should be "vertical-align: middle".