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| 1 <!DOCTYPE html> | |
| 2 <html> | |
| 3 <head> | |
| 4 <title>Benchmark - CSS Blending and CSS Animation</title> | |
| 5 <style> | |
| 6 #backdrop { | |
| 7 float: left; | |
| 8 width: 400px; | |
| 9 height: 400px; | |
| 10 isolation: isolate; | |
| 11 background-image: linear-gradient(to bottom, | |
| 12 rgba(255, 255, 0, 0.9), | |
| 13 rgba(255, 0, 0, 0.9), | |
| 14 rgba(0, 255, 0, 0.9), | |
| 15 rgba(0, 0, 255, 0.9), | |
| 16 rgba(0, 0, 0, 0.9)); | |
| 17 position: absolute; | |
| 18 top: 50px; | |
| 19 left: 100px; | |
| 20 } | |
| 21 #backdrop div { | |
| 22 width: 5%; | |
| 23 height: 5%; | |
| 24 background-color: rgba(200, 100, 100, 0.7); | |
| 25 float: left; | |
| 26 will-change: transform; | |
| 27 mix-blend-mode: difference; | |
| 28 animation: rotate 3s infinite linear; | |
| 29 } | |
| 30 @keyframes rotate { | |
| 31 to {transform: rotateZ(360deg);} | |
| 32 } | |
| 33 } | |
| 34 </style> | |
| 35 <script src="../resources/runner.js"></script> | |
| 36 <script src="resources/framerate.js"></script> | |
| 37 <script> | |
| 38 window.onload = function () { | |
| 39 var backdrop = document.getElementById("backdrop"); | |
| 40 for (var i = 0; i < 400; i++) { | |
| 41 var div = document.createElement("div"); | |
| 42 backdrop.appendChild(div); | |
| 43 } | |
| 44 PerfTestRunner.prepareToMeasureValuesAsync({ | |
| 45 description: "Measure performance of CSS Animation on elements having mi
x-blend-mode: difference (a separable popular blend mode).", | |
| 46 done: onCompletedRun, | |
| 47 unit: 'fps' | |
| 48 }); | |
| 49 startTrackingFrameRate(); | |
| 50 } | |
| 51 | |
| 52 function onCompletedRun() { | |
| 53 stopTrackingFrameRate(); | |
| 54 } | |
| 55 </script> | |
| 56 </head> | |
| 57 <body> | |
| 58 <pre id="log"></pre> | |
| 59 <div id="backdrop"></div> | |
| 60 </body> | |
| 61 </html> | |
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