| <!DOCTYPE html> |
| <html><head> |
| <title>CSS filter blur occlusion test.</title> |
| <style type="text/css"> |
| .composited { |
| will-change: transform; |
| } |
| .green-parent { |
| width: 600px; |
| height: 600px; |
| } |
| .centered { |
| width: 200px; |
| height: 200px; |
| position: absolute; |
| left: 100px; |
| top: 100px; |
| } |
| .alpha { |
| -webkit-filter: opacity(0%); |
| } |
| </style> |
| </head> |
| <body> |
| <!-- |
| This test guards against culling behind filters that change opacity. The red box is given |
| an opacity of 0% with a CSS filter, so only the green box behind it should be visible. |
| --> |
| <div class="green-parent composited" style="position:absolute; left:0; top:0"> |
| <div class="centered composited" style="background-color: green;"> |
| </div> |
| </div> |
| <div class="composited centered alpha" style="background-color: red;"> |
| </div> |
| </body> |
| </html> |
