The easiest way to show you the html and css is to visit http://www.appening.com.au/app2/
Once loaded, you'll notice quite a large gap in the content area, I would like this gap:
To be filled with a tiling:
How do I achieve this successfully?
if i was doing this, id have
if i was doing this, id have the repeating background applied to the parent. I'd have two other containers inside to hold the other two graphics. all your content will live inside the parent. You'll also want to make those top and bottom graphics much smaller in height. There are many ways to do this, explore different ideas and techniques.