How can I add a drop shadow effect to a website that has one center column?
Some examples of what I mean:
Those are both done with background images:
See Mint: http://www.mint.com/images/global/body.jpg
See LaLa: http://s.pplala.com/static/24.4.1-25/images/background.png
LaLa's is repeating, where Mint uses one large image.
