Different elements on this page appear to scroll at different speeds. How was this done?

user852974 picture user852974 · Dec 5, 2011 · Viewed 12.2k times · Source

The effect i am refering to is visible at http://whyinteractive.com/showreel. The elements appear to scroll behind and in front of one another at different speeds creating some cool effects. How was this done?

Answer

Alec Smart picture Alec Smart · Dec 5, 2011