=== Description
If the table of contents is long enough it has its own scroll area. When you are scrolling the table of contents it should show a scrollbar.
| current | updated
| -- | --
| {F35237306} | {F35237307}
prototype: https://di-collapsible-menus.web.app/Paris
The scrollbar //not// show when:
- the TOC is short enough that it doesn't have it's own scroll area
- you are not scrolling
=== Developer notes
See: https://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/skins/Vector/+/refs/heads/mast[…]ources/skins.vector.styles/components/TableOfContents.less
=== QA
- Check Window's computers
- Check with & without external mouse
- Check Firefox & Safari
== QA Results - Beta
| **AC** | **Status** | **Details** |
| ----- | ----- | ----- |
| 1 | ✅ | T310540#8012878 |
| 2 | ✅ | T310540#8012878 |
| 3 | ✅ | T310540#8012878 |
== QA Results - Prod
| **AC** | **Status** | **Details** |
| ----- | ----- | ----- |
| 1 | ✅ | T310540#8027325 |
| 2 | ✅ | T310540#8027325 |
| 3 | ✅ | T310540#8027325 |