how can I change my website background?

[mayafshar]

I need to change the background of my website, the design and color and I don't know how to change it in CSS?
somebody design it for me and I'm not happy with it at all.
also I have a image suffler which right now shuffles between 6 picts I need to add more picture to that too?
please helppppppp.

[JKing]

Can't offer much advice without seeing some code and a more elaborate explanation of your requirements.

[mayafshar]

The codes

Here is my website address, please look at the sources which will show the html and codes, and see if you can help me, I would really appreciate that. I'm stock and don't know what to do.

https://www.sunfielddevelopment.com

Thanks

[Ramil Alcibar]

You need to edit your CSS file, the current is: http://www.sunfielddevelopment.com/style.css