<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=684759 --> <head> <title>Test for Bug 684759</title> </head> <style> #container { transform-style: preserve-3d; transform: translate3d(400px, 0px, 10px); background-color: black; } #separator { width: 400px; height: 400px; background-color: green; } #transformed { width: 400px; height: 400px; background-color: blue; transform: translate3d(-400px, 0px, 10px); } </style> <body onload="run()"> <div> <div id="container"> <div id="separator"></div> <div id="transformed"></div> </div> </div> </body> </html>