UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.101 Safari/537.36

Steps to reproduce the problem:
1. Open jsfiddle - https://jsfiddle.net/my8bit/t0k38xau/5/
2. Try to scroll down and then move cursor from text to tooltip
3. A button will jump up and down depends on scrolling. Also, we can see that debugger tools showing the expected position of the button. See the attached video

What is the expected behavior?
Button stays in place.

What went wrong?
A button should not change the position even according to debugger tools. This is not expected by markup.

Did this work before? N/A 

Does this work in other browsers? Yes

Chrome version: 60.0.3112.90  Channel: n/a
OS Version: OS X 10.12.6
Flash Version:
 

Deleted: chrome-bug-steps-to-reproduce.mp4 4.4 MB

	chrome-bug-steps-to-reproduce.mp4 4.4 MB View Download