Welcome to the JavaRanch, Ankur. We're not a good place to go for urgent help, since we're not paid to stand by 24x7 to answer questions, and on top of that, it was a holiday weekend in the USA.
I haven't worked with icefaces lately, but what I normally do for problems like this is first RTFM, of course, then look at the generated HTML in my browser. I can usually deduce some sort of
pattern for CSS to latch on to, except in cases where the control's own internal CSS collides.
The secret of how to be miserable is to constantly expect things are going to happen the way that they are "supposed" to happen.
You can have faith, which carries the understanding that you may be disappointed. Then there's being a willfully-blind idiot, which virtually guarantees it.