Bug 196158

Summary:	Underlines with animated thickness leaves trail as it decreases thickness
Product:	WebKit	Reporter:	Myles C. Maxfield <mmaxfield>
Component:	Text	Assignee:	Myles C. Maxfield <mmaxfield>
Status:	NEW ---
Severity:	Normal	CC:	dbates, mmaxfield, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified
See Also:	https://bugs.webkit.org/show_bug.cgi?id=190764

Description Myles C. Maxfield 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.

Comment 1 Radar WebKit Bug Importer 2019-03-23 17:42:58 PDT

<rdar://problem/49191157>

Comment 2 Myles C. Maxfield 2019-03-29 18:25:27 PDT

https://bugs.webkit.org/show_bug.cgi?id=190764 should have fixed this :(

Comment 3 Myles C. Maxfield 2019-04-02 09:40:56 PDT

We should consider making both position and size always multiples of whole device pixel.

Comment 4 Myles C. Maxfield 2019-04-03 12:10:06 PDT

See also: https://twitter.com/letrastudio/status/1113136339149565953