HTML5 Animated Banners
Please note that there are 3 creatives here.
I’ve only included the MPU units to avoid clutter as there are 3 separate creatives/animations here. The main focus being on the animation which is not brought in via a video file. Animation is achieved by programmatic manipulation of the sprite-sheet (it is a large PNG file containing all the frames, or character movements on one file).
By using sprite-sheets, the banner weight in kilobytes can be significantly reduced, as well getting all the perks of using a single image instead of rendering out and uploading 3 separate video file formats (mp4, ogv and webm) for each creative.