Add new styles to ephox editor

How do we add new styles to the ephox editor?
I was looking at the elj_config.xml and elj_config_dynamic.xml files. Which file do we need to update?
Also what section do we need to update to include the client css files?

thanks
Manvinder

The best approach we’ve found is to create new config files and specify which is used based on users’ roles or community. Start with a copy of elj_config.xml, rename and adjust it as needed. You can refer to an external css file here (ephox will even include options to use the css classes in the code). Just put this (surrounded by “<” and “/>”) in the head tags:

link rel="stylesheet" type="text/css" href="http://path-to-your-site.com/test.css" 

For further details, see the pdf here.