Form width create a gray background I can t get rid of?

Insertion an I frame into Wix and I get a gray area around the border that I can not get rid of. I'm looking for transparent or white.  Please advise. Thanks

I figured it out in the Designer,  Whoever designed this tech, you are awesome!  Excellent work. 

We are glad to hear that, and happy to know you've got it sorted out. :)

If there is anything else we can help you with, we are always just a new support thread away.