In this section, you will discover three more objects. These objects are known as the Rollover objects, because they are originally hidden and show up only when the user rolls over a specific area of the slide. This very behavior makes Rollover objects impossible to use on touch devices such as tablets and smartphones. This is the reason why Rollover objects are not supported in the HTML5 output of Captivate.
Making Rollover objects mobile friendly
On mobile devices, these Rollover objects can be replaced by other objects that mimic the rollover behavior. See Packt's Adobe Captivate 7 for Mobile Learning title at http://www.packtpub.com/adobe-captivate-7-for-mobile-learning/book.