Checkpoint 4.12 - Mobile-PDA

One capability of the GIF89 standard for creating gifs is the capability to create animated gifs. Animated gifs are larger than non-animated gifs due to the extra imagery and functionality to animate the imagery. In the desktop environment where bandwidth and download time are not an issue, animated gifs may be used, as long as the animation does not continue indefinitely. In the mobile environment, where download time, cost and speed of retrieval are all issues, animated gifs must not be used.

Requirement

Animated gifs are not used

Recommendation

Use non-aminated gifs. Consider redesigning the page if animation is crucial to the display of certain content.

Checking Tool

View the page on a mobile device and verify that no animated gifs are presented.

Information Source

The original source of this information is located on the W3C web site  (www.w3.org/TR/WCAG10-TECHS/#tech-avoid-movement)