| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>filter-bug</title> | |
| <style> | |
| .backdrop { | |
| position: absolute; | |
| top: 0; | |
| left: 0; | |
| height: 100px; | |
| width: 100px; | |
| background-color: silver; | |
| } | |
| .overlay { | |
| position: absolute; | |
| top: 50px; | |
| left: 50px; | |
| width: 400px; | |
| height: 100px; | |
| background: gray; | |
| box-shadow: 0 0 4px black; | |
| } | |
| .play { | |
| font-size: 36pt; | |
| background-color: navy; | |
| color: white; | |
| } | |
| .play.changed { | |
| -webkit-filter: drop-shadow(black 0 0 5px); | |
| } | |
| .composited { | |
| -webkit-transform: translateZ(0); | |
| } | |
| </style> | |
| <script> | |
| if (window.testRunner) | |
| testRunner.waitUntilDone(); | |
| function doTest() | |
| { | |
| window.setTimeout(function() { | |
| document.getElementById('play').classList.remove('changed'); | |
| if (window.testRunner) | |
| testRunner.notifyDone(); | |
| }, 0); | |
| } | |
| window.addEventListener('load', doTest, false); | |
| </script> | |
| </head> | |
| <body> | |
| <div class="composited backdrop"></div> | |
| <div class="overlay"> | |
| <span id="play" class="play changed">this should be visible</span> | |
| </div> | |
| </body> | |
| </html> |