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| (Empty) |  | 
 |   1 <!DOCTYPE html> | 
 |   2 <p>The rules below should be green, and there should be no assertion failures.</
    p> | 
 |   3 <p>Click to test if testing manually.</p> | 
 |   4 <div id="mc" style="-webkit-columns:3; line-height:100px; -webkit-column-rule:so
    lid yellow;"> | 
 |   5     <br> | 
 |   6     <br> | 
 |   7     <br> | 
 |   8 </div> | 
 |   9 <script> | 
 |  10     if (window.testRunner) | 
 |  11         testRunner.waitUntilDone(); | 
 |  12     function changeStyle() { | 
 |  13         document.getElementById('mc').style.webkitColumnRuleColor = 'green'; | 
 |  14         if (window.testRunner) | 
 |  15             testRunner.notifyDone(); | 
 |  16     } | 
 |  17     onclick = changeStyle; // for testing manually. | 
 |  18     onload = function() { | 
 |  19         // Force painting, then change style, which in turn will trigger another
     repaint. | 
 |  20         if (window.testRunner) | 
 |  21             testRunner.displayAsyncThen(changeStyle); | 
 |  22     } | 
 |  23 </script> | 
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