Hidden styles on links

[NZ_Mark]

Hi,
I want to have a link to a sitemap on my front page but I want it to be hidden to users and visible to robots only.
If I apply a class to the link from a CSS where the class style is hidden will Google penalise me? Can googlebot detect that the link is not visible when the class is defined in a separate CSS?

MD

[DerekH]

Google's Webmaster Guidelines state

Don't deceive your users, or present different content to search engines than you display to users.

My feeling is that that should be your guiding principle.

DerekH