[Webkit-unassigned] [Bug 234148] New: Incorrect aspect ratio size

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=234148

            Bug ID: 234148
           Summary: Incorrect aspect ratio size
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Mac (Intel)
                OS: macOS 10.15
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: adam.seckel at gmail.com

In latest Safari 15, as well as Safari Technology Preview, combining aspect-ratio and width does not result in the correct element height.

An element with width: 352px and an aspect-ratio: 352 / 490 should result in a height of 490px (Latest Chrome and Firefox). In Safari however, it results in ~500.xx px

AN older version of Chrome (91.0.4472.164) also resulted in 500, but this has now been fixed by 96.0.4664.93 (not entirely clear which version fixed it.

Please see the reproduction attached in the code sandbox below.

https://codesandbox.io/s/aspect-ratio-calculation-d866x?file=/src/index.js

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