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Problem>showcase : mobile embed code is NOT responsive: marvelapp possible?

I use Marvelapp to make the view for a webflow site… but is it possible to make an embedcode for webflow to view the webapp/desktopversion for my portfolio with a phone/desktop layout the Marvelapp works?

Now website also have the same probem that the embed code is NOT responsive.

Who can make this Marveapp-example with webflow for me?
for example
look to a Behance portfolio example