[Webkit-unassigned] [Bug 226461] New: Element not displayed

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=226461

            Bug ID: 226461
           Summary: Element not displayed
           Product: WebKit
           Version: Safari 14
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Critical
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: collimarco91 at gmail.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

The latest version of Safari (testing with 14.1 on MacOS 11.4) does not display an element with position fixed.

Previous versions of Safari have always worked properly and all the other browsers display the element properly.

1. Visit this page: https://pushpad.xyz
2. The element div#pushpad-prompt is not displayed (it is a sort of "toast" message in the bottom left of the page, you can see it by visiting the page with Chrome).

As you can see using the inspector **the element is visible, with display block and positioned at bottom 0, left 0**. So it must be visible in the viewport.

However Safari (only the latest versions) is not displaying it.

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