This one took me hours to figure out, hopefully this helps someone.

Most web designs have the content in the center with a max width of 1024 or so, but most computer screens are now wide screen, so what to do with the extra margin space?

A common web design is to display a nice big image in the right or left margin to fill the space for large screen sizes. Like most things in web design, there are numerous ways to do this, and most do not work very well.