html error on css styling - repost (Should take 1 hour or less do not bid over £20)

We used a freelancer to create html templates for our eBay store. The template worked fine then for some reason the following error. Please do not bid over £20 i will not accept, this error has been sorted out in 1 hour for £10 before. the background should look similar to this: [login to view URL] Instead it is grey, there appears to be an issue with that and also the shop categories (approx 2/3 of the way down the page are not in symmetrical line: [login to view URL] We believe the issue lies in the code, the CSS styling appears to be the issue alone I can forward the code to a successful bidder