This post is from 2011, about 14 years ago. Some of it may be out of date.
▸ Animate.css - a bunch of plug-and-play CSS animations
Jake Marsh
animate.cssis a bunch of cool, fun, and cross-browser animations for you to use in your projects. Great for emphasis, home pages, sliders, and general just-add-water-awesomeness.
Great little library for generating a pre-made .css file filled with ready-to-use CSS3 keyframe animations. Useful and a good way to learn about doing animations like this in CSS.
Link: daneden.me/animate/#cta