In any case, you dont need to optimise your css, although if CSS was your targeted search term, for when people search for css, you would hope that your targeted css search term, css css css, or css css, or various css permutations of saying css or cascading css or other css type things for css lovers your keywords would be relevant to css and your css targets would be reached by using css.
Wow, you've followed all the SEO tips on this one haven't you.
Of course this makes your site confusing and repetitive to normal people and blatantly obvious to people who know about SEO linkbaiting.
Good luck, but I would suggest targeting your linkfarming somewhere else.
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