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1 <!DOCTYPE HTML> |
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2 <html> |
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3 <body> |
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4 <style> |
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5 body { |
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6 padding: 100px; |
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7 width: 5000px; |
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8 height: 5000px; |
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9 overflow: scroll; |
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10 } |
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11 div { |
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12 } |
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13 #parent { |
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14 background:red; |
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15 width: 64px; |
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16 height: 64px; |
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17 } |
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18 #child { |
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19 background:green; |
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20 position:fixed; |
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21 width: 32px; |
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22 height: 32px; |
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23 } |
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24 </style> |
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25 <div id="parent"> |
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26 <div id="child"> |
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27 |
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28 </div> |
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29 </div> |
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30 <script type="application/javascript"> |
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31 |
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32 if (document.location.search == '?willchange') { |
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33 document.getElementById("parent").style.willChange = "transform"; |
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34 } else if (document.location.search == '?ref') { |
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35 document.getElementById("parent").style.transform = "translateZ(1px)"; |
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36 } else if (document.location.search == '?noblock') { |
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37 } |
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38 |
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39 document.documentElement.scrollTop = 10; |
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40 document.documentElement.scrollLeft = 10; |
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41 </script> |
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42 </body> |
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43 </html> |