In this lesson, you're going to learn how to apply advanced techniques like visibility, absolute positioning, and :hover to some fun things like thumbnail photo galleries and interactive facts. You'll go over some practical examples of the concepts, and the lesson will provide you with some code you can drop right into your own pages and use with minimal alteration. You'll also discover the secret to making the CSS :hover event work on devices like the iPhone, iPad, and iPod Touch, which don't always play nice with events that are designed to work with mouse pointers.