| <!DOCTYPE html> <!-- webkit-test-runner [ AsyncOverflowScrollingEnabled=true ] --> | |
| <html> | |
| <head> | |
| <style> | |
| #scroller { | |
| width: 500px; | |
| height: 500px; | |
| border: 1px solid black; | |
| overflow: scroll; | |
| margin: 10px; | |
| will-change: transform; | |
| } | |
| .filler { | |
| height: 160px; | |
| width: 10px; | |
| } | |
| .clipper { | |
| width: 300px; | |
| height: 400px; | |
| margin: 10px; | |
| overflow: hidden; | |
| border: 2px solid black; | |
| position: relative; | |
| will-change: transform; | |
| } | |
| .controls-bar-bottom { | |
| position: absolute; | |
| width: 100%; | |
| height: 50px; | |
| bottom: 0; | |
| z-index: 0; | |
| } | |
| .above, .below { | |
| position: absolute; | |
| width: 100%; | |
| height: 100%; | |
| } | |
| .above { | |
| background-color: green; | |
| } | |
| .below { | |
| background-color: red; | |
| will-change: transform; | |
| } | |
| </style> | |
| <script> | |
| window.addEventListener('load', () => { | |
| document.getElementById('scroller').scrollTop = 95; | |
| }, false); | |
| </script> | |
| </head> | |
| <body> | |
| <div id="scroller"> | |
| <div class="filler"></div> | |
| <div class="clipper"> | |
| <div class="controls-bar-bottom"> | |
| <div class="below"></div> | |
| <div class="above"></div> | |
| </div> | |
| </div> | |
| <div class="filler"></div> | |
| </div> | |
| </div> | |
| </body> | |
| </html> |