None of these are limited to whichever tech they were initially created with, it just takes someone with the motivation to port the library-specific bits over.

None of these are limited to whichever tech they were initially created with, it just takes someone with the motivation to port the library-specific bits over. e.g. for React, there are ports of Ionic, Bootstrap (the only one in this list I've actually used so far), Foundation for Apps and about 3 different implementations of Material Design, plus new UI component libraries like Belle, Elemental UI, Grommet, cf-ui, TouchstoneJS, Rebass, Pivotal UI and probably more since last time I checked.