Flawwwless ui is an open source React.js components library created to help makers building and updating high-quality apps easily.

An extensive CSS reference with all the important properties and info to learn CSS from the basics.

Sal (Scroll Animation Library) is written with aim to provide performant and lightweight solution for animating elements on scroll. It's based on the Intersection Observer, which gives amazing performance in terms of checking the element's presence in viewport.