| <!DOCTYPE html> |
| <html> |
| <head> |
| <style> |
| body { |
| height: 5000px; |
| } |
| |
| #indicator { |
| width: 256px; |
| height: 256px; |
| background-color: red; |
| position: fixed; |
| left: 100px; |
| top: 100px; |
| will-change:transform; |
| } |
| |
| #overlap { |
| width: 500px; |
| height: 500px; |
| background-color: green; |
| position: fixed; |
| left: 0px; |
| top: 0px; |
| } |
| </style> |
| <script> |
| function doTest() { |
| window.scrollTo(0, 1000); |
| if (window.testRunner) { |
| document.getElementById('layertree').innerText = internals.layerTreeAsText(document); |
| testRunner.dumpAsTextWithPixelResults(); |
| } |
| } |
| window.addEventListener("load", doTest, false); |
| </script> |
| </head> |
| <body> |
| <!-- the red indicator should be covered by the green overlap element --> |
| <div id="indicator"></div> |
| <div id="overlap"></div> |
| |
| <pre id="layertree"></pre> |
| </body> |
| </html> |
