[Solved] Assigning content a class?

Is there any way for a client to assign classes to content using the rich text editor - especially images?

Cheers

In the Manager, go to Tools > Configuration > Interface & Features and in the text field CSS selectors: at the bottom there, type in your classes, like Image Left=imgLeft;Image Right=imgRight, where Image Left and Image Right is the text that shows up in the Image editor window under Styles, and imgLeft and imgRight is just the class names (you may call it whatever you want) 

Great, thanks...