Don't want this to sound like bashing, but the website doesn't work very well on mobile (hover and active states act weirdly, menu very clumbersome, etc.), and I assume the same can be said about the toolkit. Hopefully this is an area the author(s) plan to work on.

UPDATE: Just realised this is developed by a Chinese food delivery service ele.me (饿了么). I visited their website and found its developers made it completely without RWD in mind. This explains things…