734748 - When rendering a CSS triangle, Firefox renders the null border with a dark outline

Status: RESOLVED DUPLICATE of bug 644104

(Core :: Graphics, defect)

Description

[Daniel Buchner [:dbuc]]

If you look at our rendering of CSS triangles in comparison with other browsers, you will notice that the null border (pointy side) of the triangle improperly renders with a dark outline: http://davidwalsh.name/dw-content/css-triangles.php (take a look at the yellow triangle on that demo page)

If you add a value of "border-NullSideHere: 0 dotted;" it will cause the null border side of the element to render properly. Interestingly, you must use a border-style other than "solid" to trigger the correct render.

Feel free to ask me any further questions or ping me on IRC @ dbuc

Comment 1

[Boris Zbarsky [:bzbarsky]]

Pretty sure this is a duplicate...  it's also not reproducible on Mac, as far as I can tell, which is what makes me think it's a duplicate.

Comment 3

[mjh563]

(In reply to Boris Zbarsky (:bz) from comment #1)
> Pretty sure this is a duplicate...  it's also not reproducible on Mac, as
> far as I can tell, which is what makes me think it's a duplicate.

Bug 644104?

Comment 4

[Alexander Makarov]

Yes, it's duplicate of 644104.