My site is http://spacewiseorganizing.com. I am trying to make the site be full width, fluid to whatever computer or device is using it, or change the margin color to white rather than the blue I used. I can't figure out how to access margin color. I tried to update the site to the new version of atahualpa today and it removed my header and so much of my formatting, so I'm trying to make the changes in my current version 3.7.12. Thank you!!!