Problem with News Show GK 4 of quickstart 2.5

My head explodes.

I would like to change the style of the different divs in the News Show GK4 Modul. I already found the class which control this. Its nspArts div. But when i change something, the changes be made in each modul of News Show GK4.

I would like to have a border and background image in each line of the showing News. But in only in the "Übersicht" Modul. Suffix doesnt help me.

http://www.solingen03.de/null_drei is the URL. I hope you can help me

Please use module suffix and then try to style this area with suffix before like
.suffix .nspArt {}
this should affect to only one selected module isntance