| <!doctype HTML> | |
| <style> | |
| #parent { | |
| width: 100px; | |
| height: 100px; | |
| background-color: lightblue; | |
| } | |
| #child { | |
| width: 50px; | |
| height: 50px; | |
| background-color: blue; | |
| will-change: transform; | |
| } | |
| </style> | |
| <div id="parent"> | |
| <div id="child"></div> | |
| </div> | |
| <script src="../../resources/run-after-layout-and-paint.js"></script> | |
| <script> | |
| runAfterLayoutAndPaint(function() { | |
| document.getElementById("parent").style = "height: 500px;"; | |
| parent.postMessage('done', '*'); | |
| }); | |
| </script> | |