| <!DOCTYPE html> <!-- webkit-test-runner [ AsyncOverflowScrollingEnabled=true ] --> |
| <html> |
| <head> |
| <style> |
| #scroll-container { |
| overflow-y: scroll; |
| height: 500px; |
| width: 500px; |
| border: 1px solid black; |
| } |
| |
| .container { |
| position: relative; |
| z-index: 0; |
| background-color: silver; /* This obscures .child when the bug occurs */ |
| height: 500px; |
| } |
| |
| .child { |
| position: relative; |
| width: 500px; |
| z-index: 0; |
| height: 200px; |
| background-color: green; |
| } |
| |
| .outer-trigger, .mid-trigger, .inner-trigger { |
| position: relative; |
| top: 20px; |
| left: 10px; |
| height: 30px; |
| width: 50px; |
| z-index: 1; |
| background-color: orange; |
| } |
| |
| .content { |
| background-color: green; |
| height: 400px; |
| } |
| </style> |
| </head> |
| <body> |
| <div id="scroll-container"> |
| <div class="container"> |
| |
| <div class="child"> |
| </div> |
| |
| <div class="outer-trigger"> |
| <div class="mid-trigger"> |
| <div class="inner-trigger"></div> |
| </div> |
| </div> |
| </div> |
| <div style="height: 600px;"></div> |
| </div> |
| </body> |
| </html> |
