Content area of blog posts becomes much narrower in full-screen mode

[quangminhtran]

Description

GOOD behavior: In a non-full-screen mode of certain height/width, the content area of blog post is wide enough.

BAD behavior: In full-screen mode, the content area suddenly becomes much narrower (this is bad!).

Environment

• Minimal Mistakes version: latest, cloned from master
• Ruby gem or remote theme version:
• Jekyll version: 3.8.3
• Git repository URL: https://github.com/mmistakes/minimal-mistakes
• Operating system: MacOS
• GitHub Pages hosted (if yes provide URL to site): No

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Expected behavior

I would expect that the content area of blog posts remain wide and does not become much narrower* as depicted in the screenshot above.

Steps to reproduce the behavior

See description.

[mmistakes]

This is intentional.

If you want to override this behavior set classes: wide in your post's front matter like in this example.

Closing as this is a duplicate of #1373, #1265, #623, #384, #74