How to give each forum node a different background?

[Risa]

So i've been playing around with my site for a while with how but the one thing I have not figured out how to do is change the background of my node forums. Is there anyway I can get some directions on how to do it?

I would like it to be similar to this, like how it's a different background for each forum node:


Continue reading...

free plugins
minecraft paid for free
free minecraft paid plugins
free minecraft plugins
spigotmc
SpigotMC
aac free
ewg free
Minecraft Premium Plugins
ewg free download
litebans free
epicworldgenerator free
free schematics
leaked schematics minecraft
schematics
schematics leaked
schematics free
minecraft schematics free
paid minecraft schematics free
paid minecraft schematics for free
free cracked plugins
free cracked minecraft plugins
plugins
featherboard download
featherboard plugin download
antiaura download
xenforo leaked
xenforo for free
xenforo addons