User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3) AppleWebKit/536.6.1 (KHTML, like Gecko) Version/5.2 Safari/536.6.1 Steps to reproduce: On a complex CSS 3D scene (see link), transformed divs are rendered incorrectly. Due to misalignment of the surface texture, a solid DIV becomes a semi-transparent gradient. Test case: http://acko.net/files/css3d.js/index.html Attached: Chrome/Safari vs Firefox Version: 15.0a1 (2012-04-28) Actual results: * Instead of solid boxes, the 3D scene looks like misaligned transparent planes. * As you resize the window, the 3D surfaces shift around. Expected results: * The surfaces should be solid and properly aligned.

Strange thing : It works as expected if remove h1 tag.

I assume it's a resampling issue in the 3D transform fallback code. Note that the c's are 1x1.