On which framework or javascript library this website has built??

Question

the icons are draggable and window can move anywhere
once the site got access on android phone it can open contacts, photos, videos, anything
https://web.airdroid.com/
i tried to find but i got nothing.
i want to learn to make a site like this one.

Answer 1

oh i found it on wappalyzer.com

Answer 2

I found that jQuery UI is good choice for making user interface interactions, effects, widgets, and themes for website