Open PDF https://bug-279812-attachments.webkit.org/attachment.cgi?id=472582 in Safari using https://mozilla.github.io/pdf.js/web/viewer.html It looks like: In Chrome it looks like: Bug tracker: https://bugs.webkit.org/show_bug.cgi?id=279812 Please fix the issue.

Check the attached screenshot, web inspector shows the right element size and position, but Safari renders it in a wrong place. The element reacts on mouse events also correctly - according to its real position. Here you can find the live example https://3dflipbook.net/css-layer-highlight This is a regression issue, it was working fine in 15.6. Bug tracker: https://bugs.webkit.org/show_bug.cgi?id=278898 Please fix the issue.

Open https://3dflipbook.net//files/pdf-examples/safari-15.6.1.pdf with https://mozilla.github.io/pdf.js/web/viewer.html using macOS or iOS Safari. Compare result with Chrome. iOS version stops responding.