> Mirror created. Only pages from starting category
> mirrored (business) but without css. Pages from
> other categories - external links. 

If the CSS is not downloaded then i'm guessing it's a side-effect of using a
-* filter (because once HTTrack reaches each 1-depth external page the filter
is excluding any files that "Get non-HTML" may normally grab.

So, yes, you should be able to use +*.css after -*

This is really good info to have on the HTTrack Help wiki so I'll collect some
of this info and put a page up - thanks!