The following image is a Gucci website that uses the Gucci Animation Toolkit to make the gif above.
The toolkit was originally developed by Adobe and uses a number of popular graphics editing tools including Photoshop and Illustrator.
Gucci’s website is hosted on the Google Cloud Platform and uses the HTML5 Canvas specification, so it is not exactly HTML5 compatible, but it uses a lot of the tools that are commonly used in the world of HTML5 development.
You can download the Guccis Gucci Animated GIF template here.
If you want to learn how to create animated GIFs using HTML5 in Adobe Illustrator, you can find a video tutorial on Adobe’s YouTube channel.
Gucci Animation Toolkits in the wild