unistyle - Write modular and scalable CSS using the next version of ECMAScript

sing ES2015 (and some ES2016) features to write CSS in JavaScript makes it really modular, scalable and gives you in practice all the features of a good CSS pre- or postprocessor, without resorting to a new language. See the example section for use together with React for how to avoid the annoying cascading feature of CSS, which is troublesome in large scale CSS.