Website layout breaks in firefox at certain resolutions

[bast0006]

Summary

At certain resolutions, the doc site layout table of contents overlays the actual content

Reproduction Steps

1. Navigate to https://docs.disnake.dev/en/stable/api.html (Appears in firefox 95, dark mode, and safari 15.1, light mode, presumably others)
2. Shrink the browser window to 1270 pixels wide
3. Observe elements clipping over each other

Minimal Reproducible Code

No response

Expected Results

Content not to overlay other elements on the page that are intended for reading

Actual Results

The sidebar overlaps the main content, either clipping the content (in dark mode), or displaying the scrollbar over the content (in light mode) impairing or preventing reading.

Intents

None

System Information

OSX 11.61
Firefox 95.0 Stable
Safari 15.1

Checklist

• I have searched the open issues for duplicates.
• I have shown the entire traceback, if possible.
• I have removed my token from display, if visible.

Additional Context

No response

[bast0006]

Screenshot of issue:

[shiftinv]

Thanks!

(for future reference: this bug was introduced in d649a42 - it also happens in Chrome, however less noticeable as the text doesn't entirely disappear but is only below the sidebar's scrollbar)