| <!DOCTYPE html> | |
| <style> | |
| #container { | |
| width: 100px; | |
| height: 100px; | |
| } | |
| #child { | |
| position: fixed; | |
| right: 0; | |
| bottom: 0; | |
| width: 100px; | |
| height: 100px; | |
| background: green; | |
| } | |
| </style> | |
| <div id="container"> | |
| <div id="child"> | |
| </div> | |
| </div> | |
| This test verifies changing CSS containment correctly invalidates layout. | |
| <script> | |
| var container = document.getElementById("container"); | |
| container.offsetTop; // forces layout | |
| container.style.contain = "paint"; | |
| </script> |