Selectize is the hybrid of a textbox and <select> box. It's jQuery based, and it has autocomplete and native-feeling keyboard navigation; useful for tagging, contact lists, etc.

Primer is GitHub's design system. This is the CSS implementation

Tasty CSS-animated Hamburgers

Modern framework to print the web correctly.                                               

All things #DeFi - trustless and transparent financial products built on top of the blockchain.