iFrame code breaks website?

@JanneWassberg There are no div’s being used in this. Only Sections, Containers & HTML Embeds.

Please take a look at the read only link, perhaps you can find something I cant?

https://preview.webflow.com/preview/connect-car-financing?utm_medium=preview_link&utm_source=designer&utm_content=connect-car-financing&preview=71b449ad41f6e74f86708accd1b49482&pageId=5e1bb02369345966b1b19eff&mode=preview