Is this possible with Generatepress?

Hi,

It's definitely possible but this will require a bit of custom CSS.

If you can link us to the page you're working on so we could help you out with the CSS writeup.

Let us know.

That's very kind of you, thank you.

https://profitcopilot.com/find-your-blog-niche.html

You can try adding in a CSS of something like this:

body.single .inside-article {
    border-radius: 10px;
    border: 1px solid rgb(35, 8, 32);
    overflow: hidden;
}

.inside-article > *:not(:first-child) {
    padding: 0px 30px;
}

This will be the result: https://share.getcloudapp.com/2Nu07jDb

Note: We'll have to do a different write-up if you want the form and post navigation outside of the border.

That's amazing, thank you!

Nice one. No problem. :)