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| 1 <!-- Based on fast/repaint/fixed-under-composited-fixed-scrolled.html --> | |
| 2 <!DOCTYPE html> | |
| 3 <script src="resources/paint-invalidation-test.js"></script> | |
| 4 <script> | |
| 5 function paintInvalidationTest() { | |
| 6 document.getElementById('fixed').style.display = 'none'; | |
| 7 } | |
| 8 onload = function() { | |
| 9 // Scroll before repaint test to test correct scroll offset of invalidation re
ct | |
| 10 // for fixed-position element when it needs repaint. | |
| 11 window.scrollTo(0, 400); | |
| 12 runPaintInvalidationTest(); | |
| 13 }; | |
| 14 </script> | |
| 15 <style> | |
| 16 body { | |
| 17 height: 2000px; | |
| 18 } | |
| 19 #fixed-container { | |
| 20 position: fixed; | |
| 21 top: 0; | |
| 22 left: 0; | |
| 23 width: 100%; | |
| 24 height: 100%; | |
| 25 background-color: green; | |
| 26 backface-visibility: hidden; | |
| 27 } | |
| 28 #fixed { | |
| 29 position: fixed; | |
| 30 top: 100px; | |
| 31 left: 100px; | |
| 32 width: 200px; | |
| 33 height: 200px; | |
| 34 background-color: red; | |
| 35 } | |
| 36 </style> | |
| 37 Tests paint invalidation of fixed elements under a composited fixed element afte
r scrolled. | |
| 38 Passes if there is only green background. | |
| 39 <div id="fixed-container"> | |
| 40 <div id="fixed"></div> | |
| 41 </div> | |
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