Description

see this:

In case of Bug (otherwise remove this paragraph)

Browser Affected
(use this site: https://www.whatsmybrowser.org/ for non expert users)

• Internet Explorer
• Chrome 65.0.3325.181
• Firefox
• Safari

Browser Version Affected
65.0.3325.181

Steps to reproduce

• go to the home
• scroll down
• position the mouse on the button "back to top"
• scroll down again

Expected Result

• tooltip follows the button

Current Result

• tooltip stays in the original position

Other useful information (optional):

testing version at this commit