Showing what app looks like from desktop browser

Part of my Ionic app involves customization and I would like to show how the app will look on my ‘admin website’. Pretty much the same way that the Ionic docs show the right side of the page with the image of a mobile device. What are the different parts I would need to leverage from the Ionic website to get this same behavior on my site. Or are there other solutions? Basically I want a sidebar that has a container that looks like a mobile device and can show what certain pages look like.

Looks like it was somewhat answered here: How to display our Ionic App in a Phone Iframe on a website?