jParallax turns a selected element into a ‘window’, or viewport, and all its children into absolutely positioned layers that can be seen through the viewport. These layers move in response to the mouse, and, depending on their dimensions (and options for layer initialisation), they move by different amounts, in a parallaxy kind of way.
The diagram on the right illustrates what Parallax does to the html:
Una vera figata!
Provate gli esempi a questo link.
Tratto da webdev.stephband.info