| <html> |
| <head> |
| <style> |
| #outer { |
| position: absolute; |
| top: 0px; |
| left: -1000px; |
| height: 300px; |
| width: 300px; |
| z-index: 1; |
| overflow: auto; |
| background-color: green; |
| } |
| |
| #inner { |
| transform: translateZ(0); |
| background-color: blue; |
| } |
| |
| #overlap { |
| width: 500px; |
| height: 500px; |
| background-color: yellow; |
| transform: translateZ(0); |
| } |
| </style> |
| <script type="text/javascript"> |
| if (window.testRunner) { |
| testRunner.waitUntilDone(); |
| } |
| |
| function doTest() |
| { |
| if (window.internals) { |
| internals.forceCompositingUpdate(document); |
| } |
| // Move green div so that it overlaps the yellow div, and hence |
| // needs its own backing. |
| document.getElementById("outer").style.left = "0px"; |
| if (window.testRunner) { |
| testRunner.notifyDone(); |
| } |
| } |
| |
| window.addEventListener('load', doTest, false); |
| </script> |
| </head> |
| |
| <body> |
| <div id="outer"> |
| <div id="inner"></div> |
| </div> |
| <div id="overlap"></div> |
| </body> |
| </html> |
