Move sidebar from bottom to top in responsive layout

Greetings,

When switching from PC to mobile, the right sidebar gets shifted to the bottom of the page. I’m wondering if there’s a simple CSS code I could add that would move the location of the sidebar from the bottom to the top, preferably under the main title/heading.

(I would still like the sidebar to default to a collapsed toggle, I just want to change its position.)

I’d share a link to the page, but unfortunately it’s part of a private network that requires an account for access. I’m hoping this is a straightforward enough inquiry that it’s unnecessary. I can share screenshots if there are specific questions.