US Patent 8164596 Style sheet animation creation tool with timeline interface

Techniques are provided for automatically creating style sheet animations including keyframe information. In some embodiments, a style sheet animation creation tool with a timeline-based interface is provided. By interacting with the user-interface, the user can select a point on a timeline for an animation object to add a keyframe to an animation of the animation object. In response to the user's selection of the keyframe time point, the style sheet animation creation tool displays an interactive keyframe indicator on the timeline to indicate the selected time point. With the style sheet animation creation tool, a user can generate a style sheet animation without having to author style sheet language text statements by hand.