how to change background on CSS themes

[mxm3a-xtreme]

how to change background on CSS themes (i.e. black.css) w/ another background (i.e. a .gif image)?!?

[Negative Edge]

If it exists look for #content #chatList then replace with below. 
If it doesn't exist then add whats below to the black.css

 

#content #chatList{
    background: url('path to your image') no-repeat;
}

[lara mohamed]

Hello, I tried to install this text, but every time I get an error, despite writing the girls' rule and all the data correctly. Can you help me with that?

https://github.com/Frug/AJAX-Chat