I have a problem with a module class suffix when I change the awards module to the "mainbody" position the "dark-bg" suffix doesn't work. The same happen when I change the blog module to the same position.
Mainbody positin is special. It's the same position where component content is displayed. You may try override the style of this module in template settings by using "gk_style" for this position, but I would suggest to leave this position for content only to avoid further problems.
I try adding to the "Positions style override" the rule "option mainbody - gk_style" and changing the module style for "gk_style", but its not working. i need to do something else?
Than it's like I've said. Thi module position is special. You will need to use a different module position and hide mainbody if You do not want a component to display it's content. Here is a thread with instructions how to hide mainbody: https://www.gavick.com/forums/universit ... 37439.html