| <!DOCTYPE html> |
| <style> |
| body { |
| transform: translateZ(0); |
| } |
| #container { |
| height: 300px; |
| width: 300px; |
| background-color: green; |
| transform: translateZ(0); |
| } |
| |
| #parent { |
| position: absolute; |
| left: 400px; |
| width: 300px; |
| height: 300px; |
| background-color: green; |
| -webkit-transform-style: preserve-3d; |
| } |
| |
| #child { |
| position: absolute; |
| width: 200px; |
| height: 200px; |
| z-index: -2; |
| background-color: red; |
| transform: translateZ(0); |
| } |
| </style> |
| <body> |
| <div id="container"> |
| <div id="parent"> |
| <div id="child"></div> |
| </div> |
| </div> |
| <script> |
| if (window.testRunner) |
| testRunner.waitUntilDone(); |
| |
| requestAnimationFrame(function() { |
| requestAnimationFrame(function() { |
| document.getElementById('parent').style.webkitTransformStyle = 'flat'; |
| setTimeout(function() { |
| testRunner.notifyDone(); |
| }); |
| }); |
| }); |
| </script> |
| </body> |
