CSS validation erros

Hey guys

I’m having a little problem that i can solve.
The problem is when i validate my css it gives me this 2 errors:

Lexical error at line 43, column 81. Encountered: “?” (63), after : “”

and

Value Error : display -moz-inline-box is not a display value : -moz-inline-box

The first i can’t find it and the second it’s the cform style sheet, it uses the moz-inline-box to display inline in firefox. The problem is that don’t validate.

Can someone help me, please?

I would love to have everything valid.

Thanks in advance

The url is: http://www.niceoutput.com