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| 1 <script> |
| 2 onload = function() { |
| 3 document.getElementById('scroller').scrollTo(0, 200); |
| 4 } |
| 5 </script> |
| 6 <style> |
| 7 #scroller { |
| 8 background: gray local content-box; |
| 9 border: 10px solid rgba(0, 255, 0, 0.5); |
| 10 overflow: scroll; |
| 11 padding: 10px; |
| 12 width: 200px; |
| 13 height: 200px; |
| 14 } |
| 15 |
| 16 .spacer { |
| 17 height: 300px; |
| 18 } |
| 19 </style> |
| 20 <!-- #scroller has a locally attached background with padding so when it is |
| 21 scrolled we can see the background slide up. Doing this on a composited |
| 22 element without repainting requires the background to be painted into |
| 23 the scrolling contents layer and correctly account for that layer not |
| 24 including the border in its bounds. --> |
| 25 <div id="scroller"> |
| 26 <div class="spacer"></div> |
| 27 </div> |
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