How to make a fixed area scroll?

Question

css

There is a site . Please don't take this as an advertisement. It’s just that I really killed the whole day (The bottom line is the following, when you click on “my account” (top right), something like a pop-up window appears. Although it’s hard to call it a window. when you click on registration (in the center), a form appears with data for filling, but the problem is that this form does not want to scroll and already overflowtried marginto insert it. Nothing helps. Because of this, it is impossible to register on the site. The site was not made up by me and this person is not an option to find ( <br>

Answer 1

when you click on "my account"

there is only an office
well, make a normal pop-up window.
What element are you applying this to? Your form .site-form.js-site-form_enterhas possition: fixed; What for? And why the background separately? Put the form in a div with a background, remove the fixed from the form. To the parent, do not height:100%;but min-height:100%;what would the form stretch it. Then it will scroll.

Answer 2

Normal popup window. What don't you like? Do it better)
I registered normally, the window in the center of the screen pops up - everything is convenient. My resolution is 1280*720.