Iframe scroll not working on iphone?

Question

iPhone

Guys, hello everyone
The bottom line is, there is a site, there is an iframe google forms, scrolling works everywhere, the adaptability of the site is also configured for all devices, nooooo ... iframe scroll does not work on an apple.

CSS forms (adaptive), I didn’t come up with anything smarter

.forma {
    position: relative;
    padding-bottom: 56.25%;
    padding-top: 30px;
    height: 0;
    overflow: hidden;
  margin-bottom: 30px;
}
.forma iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

>

Maybe adaptability is done somehow differently, but for a person who writes in python and C #, I don’t know how ...
I hope I formulated everything normally ...

Pysy

Да, я очень люблю спойлеры и троеточее...