ScrollMagic is a jQuery plugin which essentially lets you use the scrollbar like a progress bar.
- start an animation at a specific scroll position.
- synchronize an animation to the scrollbar movement.
- pin an element at a specific scroll position (sticky elements).
- pin an element for a limited amount of scroll progress (sticky elements).
- easily add a parallax effect to your website.
- create an inifinitely scrolling page (ajax load of additional content).
- call functions when the user hits certain scroll positions or react in any other way to the current scroll position.