Making an HTML iframe full width

Hi, I’m using a software called metalocator on my wix site on this link: https://www.bioxskincare.com/contact-us I know the software is capable of full width and fully responsive, but I can’t seem to be able to set it up that way on my wix editor. I have the html iframe on top of a stretched strip, what else do I need to do?

Can you please help me?
Thanks!

Hey Carlos,
Did you find a solution in the end? I’m currently having the same problem, I need to insert a HTML widget in my WIX page but it doesn’t work in full width.
Best wishes
Wolf

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