| <!DOCTYPE html> |
| <html> |
| <head> |
| <title>Tests that a composited layer down in the subtree of a negative z-index child triggers a foreground layer</title> |
| <style> |
| .container { |
| width: 300px; |
| height: 300px; |
| border: 1px solid black; |
| position: relative; |
| z-index: 0; |
| } |
| |
| .composited { |
| transform: translateZ(0); |
| background-color: orange; |
| width: 100px; |
| height: 100px; |
| } |
| |
| .negativez { |
| position: relative; |
| z-index: -1; |
| padding: 10px; |
| margin: 10px; |
| border: 2px solid gray; |
| } |
| |
| .contents { |
| margin: -80px 22px; |
| background-color: green; |
| width: 100px; |
| height: 100px; |
| } |
| </style> |
| <script> |
| if (window.testRunner) |
| testRunner.dumpAsText(); |
| |
| window.addEventListener('load', () => { |
| if (window.testRunner) |
| document.getElementById('layers').innerText = window.internals.layerTreeAsText(document); |
| }, false); |
| </script> |
| </head> |
| <body> |
| <div class="container"> |
| <div class="negativez child"> |
| <div class="composited child"></div> |
| </div> |
| <div class="contents"></div> |
| </div> |
| <pre id="layers"></pre> |
| </body> |
| </html> |
