[Webkit-unassigned] [Bug 252108] New: Computed value of `line-height: 1lh` affected by browser setting for minimum font size

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=252108

            Bug ID: 252108
           Summary: Computed value of `line-height: 1lh` affected by
                    browser setting for minimum font size
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: dan at danburzo.ro

Created attachment 464953

  --> https://bugs.webkit.org/attachment.cgi?id=464953&action=review

Test case for line-height: 1lh

A declaration of `line-height: 1lh` should technically imposed the line height of the parent element. 

However, when the element's font size is fixed up to respect the user's preferred minimum font size, its line height is (unexpectedly) increased proportionally, possibly related to: https://bugs.webkit.org/show_bug.cgi?id=174406

The attached test case contains two paragraphs each with a declaration of `line-height: 1lh`. When the user configures their minimum font size to 24px from Safari's settings, the line height of the two <p> elements gets out of sync with the parent's line height, and with each other.

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