The 3.10 documentation has a horizontal scroll bar on mobile

[verhovsky]

Compare 3.9 vs 3.10:

See https://github.com/python/cpython/pull/21376#issuecomment-761065453 though that change isn't what actually causes this, it seems to be the case on all documentation pages that I checked.

[verhovsky]

If you close the sidebar, you can't scroll all the way to the right

[hugovk]

For reference, links to reproduce:

• https://docs.python.org/3.9/library/functions.html
• https://docs.python.org/3.10/library/functions.html

[hugovk]

Since May 2021, we've had a responsive theme (https://github.com/python/python-docs-theme/pull/46) which has made big changes for mobile layout, including a different menu, so I can no longer reproduce this.