Help With CSS

Hello, I just purchased again your excellent theme, this time for my personal website www.LuisMarioOchoa.com I need to do a few CSS modifications and thought you could help me out: 1. Remove the grey frame around the body of the website. 2. Center the "Copyright © 2014 Luis Mario Ochoa. All Rights Reserved" info on the bottom of the page. 3. Remove the three grey horizontal lines at the bottom of the page that serve to separate the body and footer. Thank you