Steps to reproduce:

1. Log in to back office.
2. Go to Content / Content structure.
3. Edit an available content e.g. Article.
4. Move your mouse cursor over the "Question mark" tooltip and click on it.

Actual result:

Watch gif please:

https://recordit.co/8yCzNzW3nV

Question mark tooltip information does not disappear.

Expected result:

Question mark tooltip information should disappear when cursor is not placed over the tooltip.