| <!DOCTYPE html> <!-- webkit-test-runner [ AsyncOverflowScrollingEnabled=true ] --> |
| <html> |
| <head> |
| <style> |
| body { |
| margin: 0; |
| } |
| #scroller { |
| margin: 10px; |
| background-color: silver; |
| width: 400px; |
| height: 300px; |
| overflow: scroll; |
| opacity: 0.8; |
| } |
| |
| .scrolling-content { |
| height: 1000px; |
| } |
| |
| .absolute { |
| top: 20px; |
| left: 20px; |
| width: 200px; |
| height: 200px; |
| background-color: blue; |
| } |
| |
| .changed { |
| position: absolute; |
| } |
| </style> |
| <script> |
| if (window.testRunner) |
| testRunner.waitUntilDone(); |
| |
| function doTest() |
| { |
| setTimeout(() => { |
| scroller.scrollTop = 200; |
| target.classList.add('changed'); |
| |
| if (window.testRunner) |
| testRunner.notifyDone(); |
| }, 0); |
| } |
| |
| window.addEventListener('load', doTest, false); |
| </script> |
| </head> |
| <body> |
| <div id="scroller"> |
| <div class="scrolling-content"> |
| <div id="target" class="absolute"></div> |
| </div> |
| </div> |
| </body> |
| </html> |
