RTL and Hebrew / arabic Support

In Arabic and Hebrew The language goes from right to left. it is very easy to code it using CSS by using direction: rtl.
but somehow, it's not working on the instant debate comment area.
I want to restyle my IDC area, but i don't know what classes to refer in my style sheet.

Can you publish a blank style sheet only with the classes names so people can override your default settings?

Also - what about support in deferent languages? Wordpress for example uses a translation function ( it goes like this: __e('Translation string')) that uses a .po / .mo files.
is it possible to add support in these functions so it will enable multi languages support?