196158 2019-03-22 14:22:20 -0700 Underlines with animated thickness leaves trail as it decreases thickness 2026-01-07 16:33:20 -0800 1 1 1 Unclassified WebKit Text WebKit Nightly Build Unspecified Unspecified RESOLVED CONFIGURATION CHANGED https://bugs.webkit.org/show_bug.cgi?id=190764 InRadar P2 Normal --- 1 mmaxfield mmaxfield dbates fantasai.bugs mmaxfield webkit-bug-importer oldest_to_newest 1520469 0 mmaxfield 2019-03-22 14:22:20 -0700 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. 1520646 1 webkit-bug-importer 2019-03-23 17:42:58 -0700 <rdar://problem/49191157> 1522694 2 mmaxfield 2019-03-29 18:25:27 -0700 https://bugs.webkit.org/show_bug.cgi?id=190764 should have fixed this :( 1523338 3 mmaxfield 2019-04-02 09:40:56 -0700 We should consider making both position and size always multiples of whole device pixel. 1523829 4 mmaxfield 2019-04-03 12:10:06 -0700 See also: https://twitter.com/letrastudio/status/1113136339149565953 2170115 5 fantasai.bugs 2026-01-07 16:33:20 -0800 This seems to be fixed now, afaict.