Certainly background is the same since you don't have test1 and test2 CSS classes defined. This was just an example. Please see reference for CSS background-color property
here.
Also we noticed that there is JavaScript error on your site - most probably it's related to mootools/jquery libraries conflict. Setting JQuery javascript library to run in no-conflict mode should solve the problem. Please try Components-> ARI Smart Content-> Plugins -> ARI JQuery Loader -> No conflict -> Yes.
Regards,
ARI Soft