superfish.css menu height item is not correct (autoadjusted)

I am working on some website and the web template was purchased. This web template uses file superfish.css and therefore I think this template uses Superfish plugin. In this menu, I have some long texts as seen in following screenshot: Now, as you can see, I was forced to wrap texts Hardware Engineering, Software Engineering and Embedded Systems with html command <br>, which is now ok, but menu items Home, Pricing and Conctacts are not horizontaly aligned anymore and the currect menu item marker (with red background) is not resized. Why and how do I correct that?