[Webkit-unassigned] [Bug 17086] Acid3 positioned generated content overlaps border due to antialiasing

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Fri Feb 1 15:20:53 PST 2008


http://bugs.webkit.org/show_bug.cgi?id=17086





------- Comment #13 from ian at hixie.ch  2008-02-01 15:20 PDT -------
No antialiasing should be going on here. The character is exactly 1em by 1em,
1em is 20px. Thus the character is _exactly_ 20x20 pixels. The character is an
exact square. The character is rendered exactly lined up on a pixel boundary.
No part of the character ever overlaps the border. There is thus nothing to
antialias, and nothing that can affect the border.

If it was another character from another font I would agree. However, in this
particular case, the metrics are really precise and I don't see how one could
argue that the character could legitimately be rendered beyond the 20x20 box.


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