Using CSS to make a link not appear like a link
 

I am playing with CSS to make keywords which are links not appear to be links - e.g. no underline, rollover effect, or even pointing finger. All the keywords are still visible as normall body text. Will Google still recognise the links as genuine links or are they likely to penalise me or not spot the links. I am only doing so as making all the keywords underlined links look really messy.