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1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
2 | 2 |
3 <html> | 3 <html> |
4 <head> | 4 <head> |
5 <style> | 5 <style> |
6 .fixed { | 6 .fixed { |
7 position: fixed; | 7 position: fixed; |
8 z-index: 1; | 8 z-index: 1; |
9 } | 9 } |
10 | 10 |
(...skipping 31 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
42 } | 42 } |
43 | 43 |
44 .scrollable { | 44 .scrollable { |
45 border: solid black 1px; | 45 border: solid black 1px; |
46 overflow: scroll; | 46 overflow: scroll; |
47 } | 47 } |
48 </style> | 48 </style> |
49 | 49 |
50 <script type="text/javascript"> | 50 <script type="text/javascript"> |
51 if (window.internals) | 51 if (window.internals) |
52 window.internals.settings.setAcceleratedCompositingForFixedPositionEnabled
(true); | 52 window.internals.settings.setPreferCompositingToLCDTextEnabled(true); |
53 | 53 |
54 if (window.testRunner) { | 54 if (window.testRunner) { |
55 testRunner.dumpAsText(); | 55 testRunner.dumpAsText(); |
56 | 56 |
57 window.addEventListener("load", function() { | 57 window.addEventListener("load", function() { |
58 document.getElementById("layertree").innerText = window.internals.layerT
reeAsText(document); | 58 document.getElementById("layertree").innerText = window.internals.layerT
reeAsText(document); |
59 }, false); | 59 }, false); |
60 } | 60 } |
61 </script> | 61 </script> |
62 </head> | 62 </head> |
63 | 63 |
64 <body class="unscrollable"> | 64 <body class="unscrollable"> |
65 <p>Even though the fixed-position element's container is nonscrollable, it | 65 <p>Even though the fixed-position element's container is nonscrollable, it |
66 should still be composited because one of its ancestors is scrolling.</p> | 66 should still be composited because one of its ancestors is scrolling.</p> |
67 <pre id="layertree"></pre> | 67 <pre id="layertree"></pre> |
68 | 68 |
69 <div class="scrollable bigBox"> | 69 <div class="scrollable bigBox"> |
70 <div style="height: 800px;"></div> | 70 <div style="height: 800px;"></div> |
71 <div class="fixed lime box"></div> | 71 <div class="fixed lime box"></div> |
72 </div> | 72 </div> |
73 </body> | 73 </body> |
74 </html> | 74 </html> |
75 | 75 |
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