[Webkit-unassigned] [Bug 243773] "background-size: 12px" works differently than in other browsers

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=243773

--- Comment #2 from Karl Dubost <karlcow at apple.com> ---
Created attachment 461650

  --> https://bugs.webkit.org/attachment.cgi?id=461650&action=review

simplified test case

first of all. The CSS code is not correct.
"display: absolute" does NOT exist.
If it was meant to be position: absolute, then we see the dots at the bottom of the viewport. That said I'm not sure the positions are required. So let's remove them to simplify the test.


As for background-size and as Alexei mentioned:

https://developer.mozilla.org/en-US/docs/Web/CSS/background-size
https://drafts.csswg.org/css-backgrounds/#the-background-size

> The first value gives the width of the corresponding image, the second value its height. If only one value is given the second is assumed to be auto.


Now if I specify "background-size: 12px auto" the 3 rendering engines still displays the test case differently.

there's an issue about the behavior differences in browsers in the compat spec.
https://github.com/whatwg/compat/issues/28

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