Validate my CSS

Hi everyone, I am close to finishing the development of a site for a hotel/holiday park (with the help of some workers from vWorkers). Though, I checked the HTML/CSS in the W3C validator ([login to view URL]) and found errors and many warnings. The warnings are mostly to do with that the same color is repeated etc. I would like someone to solve these errors and as many warnings as possible, so that my site is fully W3C Valid. You can check the results here: [login to view URL] I am looking forward to your bids! Please show me the work you have done aswell!