Panels overlap main content when window is 800 pixels wide

[djpeterhenry]

Theme version and system environment

• Minimal Mistakes version: 4.26.2 (Or whatever's used by github right now)
• Ruby gem or remote theme version:
• Jekyll version:
• Git repository URL:
• URL to the page with the problem:
• Operating system:
• Browser version:

What happened?

Main window content is left aligned and underneath author info when browser window is 800 pixels wide.

Expected behavior

Main window content should be to the right of the "Author" information as opposed to under it.

Steps to reproduce the behavior

I can demonstrate the issue on the sample page https://mmistakes.github.io/minimal-mistakes/year-archive/

Scroll down when the window is 800 pixels wide and it looks something like this:

Other

No response

[iBug]

No reproduction.