Log In (Glossarist)
Enter a character into the filter box
Place the mouse pointer over the X (cancel button)
Something causes the display to gain some amount of invisible space. Scrollbars appear, and disappear when the mouse is moved away
The item appears to be a div with class 'tooltip fade bottom in'
Release test 4.0 6fb744a5b93200ee1f15fb9d651c593f53b08190
Chrome Version 54.0.2840.100 (64-bit)