| <!DOCTYPE html> |
| <html> |
| <head> |
| <style> |
| body { |
| margin: 0; |
| height: 400px; |
| background-image: repeating-linear-gradient(white, silver 300px); |
| } |
| |
| #composited { |
| position: absolute; |
| top: 10px; |
| width: 100%; |
| height: 200px; |
| background-color: green; |
| will-change: transform; |
| } |
| </style> |
| <script src="../../../resources/ui-helper.js"></script> |
| <script src="../../../resources/js-test.js"></script> |
| <script> |
| jsTestIsAsync = true; |
| |
| window.addEventListener('load', async () => { |
| await UIHelper.ensurePresentationUpdate(); |
| |
| const scrollAmount = 2000; |
| document.getElementById('composited').style.top = `${scrollAmount + 10}px`; |
| window.scrollTo(0, scrollAmount); |
| |
| document.getElementById('layers').innerText = internals.layerTreeAsText(document, internals.LAYER_TREE_INCLUDES_VISIBLE_RECTS | internals.LAYER_TREE_INCLUDES_ROOT_LAYER_PROPERTIES); |
| |
| finishJSTest(); |
| }); |
| </script> |
| </head> |
| <body> |
| <div id="composited">Composited</div> |
| <pre id="layers"></pre> |
| </body> |
| </html> |
