NEW 286256
Inconsistent Rendering of 0.2px Borders 
https://bugs.webkit.org/show_bug.cgi?id=286256
Summary Inconsistent Rendering of 0.2px Borders
edokeh
Reported 2025-01-20 04:00:26 PST
Created attachment 473953 [details] subpixel-border-not-render ## Summary Inconsistent rendering of 0.2px border-top property in WebKit. Specific div elements (33rd, 97th, and 161st) fail to render their border-top while identical neighboring elements render correctly. ## Steps to Reproduce Open the attached test case HTML file in iOS Safari ## Test Configuration OS: iOS16, 17, 18 Hardware: iPhone 14/15/16
Attachments
subpixel-border-not-render (10.46 KB, text/html)
2025-01-20 04:00 PST, edokeh 		no flags
Details
rendering on an iPhone (515.46 KB, image/jpeg)
2025-04-10 15:36 PDT, Karl Dubost 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Alexey Proskuryakov
Comment 1 2025-01-20 16:16:12 PST
I can reproduce on iPhone 16 Pro.
Radar WebKit Bug Importer
Comment 2 2025-01-27 04:01:36 PST
<rdar://problem/143686503>
Simon Fraser (smfr)
Comment 3 2025-04-10 08:12:19 PDT
I cannot reproduce on STP 215 on a 2x display, so this is probably specific to 3x displays.
Karl Dubost
Comment 4 2025-04-10 15:36:17 PDT
Created attachment 474885 [details] rendering on an iPhone
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