> > httrack <http://www.csszengarden.com/> -O
> > "Downloads/tmp/www.csszengarden.com" "-*
> > +www.csszengarden.com/ +*.png +*.gif +*.jpg
> +*.css
> > +*.js" -v --depth 1 

"-* +www... +*js" is a url name that does not exist.

"-*" "+www..." are filters would only allow the top level page.
"+*.png" "+*.gif" allows more.