I .Steps: ----------- 1. Go to: http://love.qihoo.com/ II. Issue: ----------------- In Safari, the link right beside the flower borders is not visible. Screenshot: http://help.improve.safari.googlepages.com/issue.jpg III. Behavior in other browsers : ------------------------------ FF ,IE : link visible Safari, Opera : link not visible III. reduction: --------------- http://help.improve.safari.googlepages.com/mytest.html
tested with webkit version:27433
This bug seems invalid to me. You can't separate center and top, since they are part of a single prop, background-position.
We could consider a quirk once we understand what IE and Gecko are doing wrong. Might be worth seeing if Gecko behaves in strict mode. Then we'd know it's an IE quirk and not just a Gecko bug.
Created attachment 18499 [details] reduced test in strict mode (document.compatMode == "CSS1Compat")
We'll need to test IE's behavior with this test case. This test demonstrates that gecko has this "bug" even in strict mode.
This seems invalid to me, unless we want to try to do a quirk.
The way we would decide whether to do this quirk or not, is really just how popular this usage is. It seems like rather a benign quirk to implement, but w/o a justifiable heavy usage in real pages, it's not worth the time.
FYI, FF3 (b2) seems to match WebKit.
This got fixed in <https://bugzilla.mozilla.org/show_bug.cgi?id=258080> with a regression test for this specific behavior, so I think it unlikely it was an IE quirk. There don't seem to have been any site-incompatibility reports either over the change.
Based on hyatts comments above, and my own sentiment. This was a FF and IE bug. FF has fixed their bug. We won't match IE's broken behavior in strict mode. Invalid.