| <!DOCTYPE html> |
| |
| <html> |
| <style> |
| body { |
| overflow: hidden; |
| } |
| .container { |
| width: 500px; |
| height: 300px; |
| -webkit-column-count: 2; |
| column-count: 2; |
| column-fill: auto; |
| border: 1px solid black; |
| } |
| |
| .block { |
| display: inline-block; |
| width: 200px; |
| height: 50px; |
| margin: 10px; |
| background-color: silver; |
| outline: 5px solid transparent; /* increases compositing layer bounds to test bounds math */ |
| } |
| |
| .composited { |
| will-change: transform; |
| transform: translateZ(0); |
| background-color: blue; |
| } |
| |
| .box { |
| height: 50px; |
| width: 50px; |
| background-color: green; |
| } |
| |
| #layers { |
| opacity: 0; /* hide from pixel result */ |
| } |
| </style> |
| <script> |
| if (window.testRunner) |
| testRunner.dumpAsTextWithPixelResults(); |
| |
| function dumpLayers() |
| { |
| if (window.testRunner) |
| document.getElementById('layers').innerText = internals.layerTreeAsText(document); |
| } |
| |
| window.addEventListener('load', dumpLayers, false); |
| </script> |
| <head> |
| </head> |
| <body> |
| |
| <div class="container"> |
| <div class="block"></div> |
| <div class="block"></div> |
| <div class="composited block"> |
| <div class="composited box"></div> |
| </div> |
| <div class="block"></div> |
| <div class="block"></div> |
| <div class="composited block"> |
| <div class="composited box"></div> |
| </div> |
| <div class="block"></div> |
| <div class="block"></div> |
| </div> |
| |
| <pre id="layers">Layer tree goes here in DRT</pre> |
| </body> |
| </html> |
