Hover question mark pop-up text

Hey, I’m kind of new in wp and I’m trying to create floating pop-up text when the user hover is mouse over the question mark.

As in this photo
https://i.imagesup.co/images2/940bf9695c85b4d51ccc0a43622bf2f6b9a07f67.png

• This topic was modified 5 days, 1 hour ago by kalanhd.
• This topic was modified 5 days, 1 hour ago by kalanhd.
• This topic was modified 5 days, 1 hour ago by Jan Dembowski. Reason: Moved to Fixing WordPress, this is not an Everything else WordPress topic