| <!DOCTYPE html><!-- webkit-test-runner [ experimental:WebAnimationsCSSIntegrationEnabled=false ] --> |
| <html> |
| <head> |
| <style> |
| .box { |
| width: 100px; |
| height: 100px; |
| margin: 20px; |
| background-color: blue; |
| transition: opacity 10ms; |
| } |
| |
| .no-transition { |
| transition: none !important; |
| opacity: 1 !important; |
| } |
| |
| .transitioning { |
| opacity: 0.1; |
| } |
| |
| .composited { |
| transform: translateZ(0); |
| } |
| </style> |
| <script src="../../../resources/ui-helper.js"></script> |
| <script> |
| if (window.testRunner) |
| testRunner.waitUntilDone(); |
| |
| window.addEventListener('load', async () => { |
| target.classList.add('transitioning'); |
| document.body.offsetWidth; |
| target.classList.add('no-transition'); |
| |
| await UIHelper.ensurePresentationUpdate(); |
| |
| if (window.testRunner) |
| testRunner.notifyDone(); |
| }, false); |
| </script> |
| </head> |
| <body> |
| <p>This box should end up with opacity 1</p> |
| <div id="target" class="composited box"></div> |
| </body> |
| </html> |
