Varld's popover and tooltip library.
react-laag provides a couple of tools to position UI elements such as tooltips and popovers with ease.
Unopinionated React library to render content into another place of the React tree (without losing the React context).
React component for transportation of modals, lightboxes, loading bars... to document.body
This library is a different implementation of Medium.com's image zoom that allows for a low-res and high-res images to work together for “zooming” effects