Have you read the Contributing Guidelines on issues?

• I have read the Contributing Guidelines on issues.

Prerequisites

• I'm using the latest version of Docusaurus.
• I have tried the npm run clear or yarn clear command.
• I have tried rm -rf node_modules yarn.lock package-lock.json and re-installing packages.
• I have tried creating a repro with https://new.docusaurus.io.
• I have read the console error message carefully (if applicable).

Description

The docs layout looks particularly weird when sidebar/content is smaller than viewport, which is likely to be the case on small pages + vertical screen

Follow-up of bug discussed in:

• fix(theme): preserve sidebar height on collapse #8328 (comment)
• Preserve sidebar height when toggling sidebar #4415

Reproducible demo

No response

Steps to reproduce

https://docusaurus.io/tests/docs/doc-with-another-sidebar

Expected behavior

The content container (sidebar + main) should grow

Actual behavior

The content container does not expand

Your environment

No response

Self-service

• I'd be willing to fix this bug myself.