Featured Boxes - inconsistent behavior across browsers

Hello ! I have purchased the Evolve theme and it is working superb. I deployed feature boxes(flip boxes) on my site but I found that they behave inconsistently across the browsers, displaying the inner side of flip cover in F.F. and Chrome, whereas it only mirrors the front cover in I.E. This behavior can be noted on the demo site here (http://demo.themesvision.com/drupal/evolve/content/service-box-shortcode) Please tell me how to overcome this problem and achieve consistency across browsers. Your support will be highly appreciated. Regards