| <!doctype html> | |
| <style> | |
| div { | |
| width: 100px; | |
| height: 100px; | |
| background: green; | |
| } | |
| html { height: 50%; } | |
| ::view-transition-group(*) { animation-duration: 500s } | |
| </style> | |
| <div></div> | |
| <script> | |
| function run() { | |
| document.startViewTransition(() => { | |
| requestAnimationFrame(() => requestAnimationFrame(() => { | |
| window.parent.postMessage({}, "*"); | |
| })); | |
| }); | |
| } | |
| onload = () => requestAnimationFrame(() => requestAnimationFrame(run)); | |
| </script> | |