| <!DOCTYPE html> |
| <html> |
| <head> |
| <style> |
| body { |
| height: 1000px; |
| } |
| .clipper { |
| margin: 20px; |
| padding: 10px; |
| width: 300px; |
| height: 100px; |
| overflow: hidden; |
| background-color: gray; |
| } |
| .changed .clipper { |
| height: 300px; |
| } |
| .content { |
| transform: translateZ(0); |
| background-color: green; |
| height: 300px; |
| } |
| </style> |
| <script> |
| if (window.testRunner) |
| testRunner.waitUntilDone(); |
| |
| window.addEventListener('load', () => { |
| requestAnimationFrame(() => { |
| document.body.classList.add('changed'); |
| |
| if (window.testRunner) |
| testRunner.notifyDone(); |
| }); |
| }, false); |
| </script> |
| </head> |
| <body> |
| <div class="clipper"> |
| <div class="content"> |
| |
| </div> |
| </div> |
| </body> |
| </html> |
