Material Progress a handy little script to create progress linear bars inspired by Google Material Design.
Subtle Click Feedback Effects is a set of subtle effects for click or touch interactions inspired by the visualization of screen taps in mobile app showcases. The effects are done with CSS animations mostly on pseudo-elements. By the oh-so-talented Tympanus folk.
SVG loaders is a handy little set of animated SVG preloaders.
React Styleguide is a thing. Takes in other components and organizes them into an easy to use styleguide.
60FPS on the mobile web as in how Flipboard built their webapp with high performance canvas rendering for React components.