DEMO LINK : http://demo.opencartclub.org/index.php?route=information/information&information_id=27

CSS3 Hover Menu is the best opencart extension also supports for all browsers. This module is a cool hover menu to show case your requirements. Highly configurable and backed with a 24x7 Customer Support package. This extension is cross browser compatible and works on all the modern browsers. Bug Free and works great! Compatible with Opencart 2.0.1.0, 2.0.1.1, 2.0.2.0, 2.0.3.1, 2.1.0.1, 2.1.0.2 and 3.0.2.0. The Downloads Access and Extension Support is valid for 6 months from the date of purchase.