Ionic docs demo device?


I would like to use something like the little demo-device found in all the angular docs.

I have a web portal that controls dynamically some of the content of the app and I really would like to have a demo device exactly like in the docs that renders what the content my look like as a preview.

It looks like the docs are using an iframe that runs the ionic demo code. But there’s some cool stuff like simulating the actual Ios or android functionality that I have no idea how it’s being done?