Turf is a modular GIS engine written in JavaScript. It performs geospatial processing tasks with GeoJSON data and can be run on a server or in a browser. Here is an example in Node.js:
Stylie is a web-based CSS3 animation tool that you can use to configure and generate your own set of animations.
A modern responsive front-end framework based on Material Design
JavaScript library enabling SVG icons to morph from one to the other.
A jQuery plugin for using FontAwesome icons as custom CSS cursors. Works in Chrome and FireFox.