CKE: How to add css to my plugin?

[Fockworgo]

I've made plugin by this tutorial.http://docs.cksource.com/CKEditor_3.x/Tutorials/Timestamp_PluginIt adds this code into the cursor position:Woundering how to add css for it.Now I've added my own css for this into contents.css, but I'm sure there is a way to connect css from plygin's folder.How do I?