NEW 196158
Underlines with animated thickness leaves trail as it decreases thickness 
https://bugs.webkit.org/show_bug.cgi?id=196158
Summary Underlines with animated thickness leaves trail as it decreases thickness
Myles C. Maxfield
Reported 2019-03-22 14:22:20 PDT
See https://codepen.io/jpamental/pen/aMQKvP Scroll down to the bottom. Notice the single underline on the last line of text. Hover over it with your mouse, then un-hover. The underline's animation back to normal thickness appears to leave a trail.
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Radar WebKit Bug Importer
Comment 1 2019-03-23 17:42:58 PDT
<rdar://problem/49191157>
Myles C. Maxfield
Comment 2 2019-03-29 18:25:27 PDT
https://bugs.webkit.org/show_bug.cgi?id=190764 should have fixed this :(
Myles C. Maxfield
Comment 3 2019-04-02 09:40:56 PDT
We should consider making both position and size always multiples of whole device pixel.
Myles C. Maxfield
Comment 4 2019-04-03 12:10:06 PDT
See also: https://twitter.com/letrastudio/status/1113136339149565953
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