Hi, I'm trying to figure out how to set background color outside the container for posts and widgets. I'm really looking for an effect similar to this forum or
http://thehappiestmom.com/ so the layout width is around 80%, the background for the posts and sidebars is still white, but the area outside that 80% has a background color. I know how to change the layout width but can't figure out where to set the color for the page margins. Please help.