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| 1 <!DOCTYPE html> |
| 2 <html> |
| 3 <head> |
| 4 <title>filter-bug</title> |
| 5 <style> |
| 6 .backdrop { |
| 7 position: absolute; |
| 8 top: 0; |
| 9 left: 0; |
| 10 height: 100px; |
| 11 width: 100px; |
| 12 background-color: silver; |
| 13 } |
| 14 |
| 15 .overlay { |
| 16 position: absolute; |
| 17 top: 50px; |
| 18 left: 50px; |
| 19 width: 400px; |
| 20 height: 100px; |
| 21 background: gray; |
| 22 box-shadow: 0 0 4px black; |
| 23 } |
| 24 |
| 25 .play { |
| 26 font-size: 36pt; |
| 27 background-color: navy; |
| 28 color: white; |
| 29 } |
| 30 .play.changed { |
| 31 -webkit-filter: drop-shadow(black 0 0 5px); |
| 32 } |
| 33 .composited { |
| 34 -webkit-transform: translateZ(0); |
| 35 } |
| 36 |
| 37 </style> |
| 38 <script> |
| 39 if (window.testRunner) |
| 40 testRunner.waitUntilDone(); |
| 41 |
| 42 function doTest() |
| 43 { |
| 44 window.setTimeout(function() { |
| 45 |
| 46 document.getElementById('play').classList.remove('changed'); |
| 47 if (window.testRunner) |
| 48 testRunner.notifyDone(); |
| 49 }, 0); |
| 50 } |
| 51 |
| 52 window.addEventListener('load', doTest, false); |
| 53 </script> |
| 54 </head> |
| 55 <body> |
| 56 <div class="composited backdrop"></div> |
| 57 <div class="overlay"> |
| 58 <span id="play" class="play changed">this should be |
| 59 visible</span> |
| 60 </div> |
| 61 </body> |
| 62 </html> |
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