AOS : Animate On Scroll Library.
Small library to animate elements on your page as you scroll.
Woah.css : CSS Animation Library for eccentric web developers.
Anime.js : Anime.js is a fast, multipurpose and lightweight JavaScript animation library with a simple, yet powerful API.
It works with CSS properties, SVG, DOM ...
Email Standards Project : The Email Standards Project is about working with email client developers and the design community to improve web standards support and accessibility ...
Skeleton : Skeleton: A Dead Simple, Responsive CSS Boilerplate for Mobile-Friendly Development
Animate.css is a bunch of cool, fun, and cross-browser animations for you to use in your projects.