[Webkit-unassigned] [Bug 72957] New: :only-of-type pseudo selector and breaks :hover on <summary>

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=72957

           Summary: :only-of-type pseudo selector and breaks :hover on
                    <summary>
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: mnissler at chromium.org
                CC: hyatt at apple.com, mkwst at chromium.org


Created an attachment (id=116219)
 --> (https://bugs.webkit.org/attachment.cgi?id=116219&action=review)
Reduced test case.

summary:hover doesn't trigger if the summary element is nested in a div that has a div:only-of-type rule and the details contain another div container. The contents of the div:only-of-type rule are not important, an empty rule triggers the problem.

I see this on the nightly at r100982 on Mac and on Chromium (webkit revision r100825).

Test case reduction is attached.

-- 
Configure bugmail: https://bugs.webkit.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.