Parallax scrolling is an advanced scrolling technique used in more advanced web designs. It occurs when background images throughout a web page move slower than foreground images. This creates an illusion of depth on a two-dimensional site. It is among the most desired design techniques in web design today.

Parallax Scrolling designed websites captivate online audiences with an engaging visual narrative that leads to the viewer scrolling continuously down the page. The effect is created by using two elements where the first element is a background that remains constant, but that scrolls more slowly than the foreground.

Organizations that employ parallax design elements are frequently creative in nature, promoting visuals over services. Arts organizations, advertising, marketing firms, real estate sites, restaurants, hair salons, tattoo parlors and tech/gaming companies would potentially benefit from parallax effects and parallax scrolling designs.

The designer accomplishes this effect by creating image layers, not unlike physical overlays (reference exhibit above). These layers are independently manipulated to provide a 3D visual illusion. As the foreground visuals (overlays) change and move, and the background (first layer) remains slow or constant, users experience a greater sense of depth. The effect is as close to three-dimensional viewing as a user can get on a two-dimensional screen.

As users view the site’s imagery, they are able to control scrolling elements. This leads to greater user interaction and engagement, thus maximizing the length of their session. The site’s minimal use of words and text tends toward a highly professional and polished atmosphere.