A rollover button is a graphic created by a web designer, which provides interactivity between the page's visitor and the page itself. The term "rollover" comes from the idea that when the visitor rolls their mouse over the button, something changes visually.
Simple rollovers use two images. The first image is what we see when the page first loads. When we roll over that button, the second image is quickly swapped into place. When we roll our mouse off the button, the first image is swapped back into place. This type of interactivity is created using JavaScript, but as always, Muse does the work behind the scenes and writes the code for us.
Rollovers don't have to use images; the simplest rollovers of all use only text. The text may simply change color or appear in bold, italic, or be underlined. We created some text-based rollovers when we added our menu system to the...