Photon : UI toolkit for building desktop apps with Electron.
Styletron : Styletron is a universal CSS-in-JS engine built from the ground up for high-performance.
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 ...
jQuery Masonry : A dynamic layout plugin for jQuery
The flip-side of CSS floats