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| 1 <!DOCTYPE html> |
| 2 <html> |
| 3 <head> |
| 4 <style> |
| 5 .box { |
| 6 width: 100px; |
| 7 height: 100px; |
| 8 position: relative; |
| 9 z-index: 1; |
| 10 top: 10px; |
| 11 background-color: red; |
| 12 border: 1px black solid; |
| 13 } |
| 14 .blending { |
| 15 mix-blend-mode: difference; |
| 16 } |
| 17 #container { |
| 18 position: absolute; |
| 19 left: 0px; |
| 20 z-index: 0; |
| 21 } |
| 22 </style> |
| 23 <script src="../resources/runner.js"></script> |
| 24 <script src="resources/framerate.js"></script> |
| 25 <script> |
| 26 window.onload = function () { |
| 27 PerfTestRunner.prepareToMeasureValuesAsync({done: onCompletedRun, unit: 'f
ps'}); |
| 28 |
| 29 // The leaf element has blending |
| 30 var lastElement = document.createElement("div"); |
| 31 lastElement.setAttribute("class", "blending box"); |
| 32 |
| 33 for (var i = 0; i < 100; i++) { |
| 34 var el = document.createElement("div"); |
| 35 el.setAttribute("class", "box"); |
| 36 el.appendChild(lastElement); |
| 37 lastElement = el; |
| 38 } |
| 39 var container = document.getElementById("container"); |
| 40 container.appendChild(lastElement); |
| 41 startTrackingFrameRate({run: softwareAnimationStep}); |
| 42 } |
| 43 |
| 44 function onCompletedRun() { |
| 45 stopTrackingFrameRate(); |
| 46 } |
| 47 function softwareAnimationStep() { |
| 48 var leftVal = parseInt(container.style.left) || 0; |
| 49 container.style.left = (leftVal + 1) + "px"; |
| 50 } |
| 51 </script> |
| 52 </head> |
| 53 <body> |
| 54 <pre id="log"> </pre> |
| 55 <div id="container"> </div> |
| 56 </body> |
| 57 </html> |
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