| <!DOCTYPE html> |
| <script src="../resources/text-based-repaint.js"></script> |
| <script> |
| function repaintTest() { |
| window.scrollBy(0, 200); |
| } |
| onload = runRepaintAndPixelTest; |
| </script> |
| <body style="height: 2000px"> |
| Tests invalidation of fixed element when scrolled in a page with empty root layer. Passes if there is no red. |
| <!-- Using 99% opacity on fixed pos element to ensure it is not automatically promoted. --> |
| <div style=" |
| position: fixed; |
| opacity: 0.99; |
| top: 50px; |
| left: 0; |
| width: 100px; |
| height: 100px; |
| background: green"> |
| </div> |
| <!-- This div makes all of the contents of the page be in sublayers of the root layer, so root layer is empty. --> |
| <div style=" |
| position: absolute; |
| z-index: -1; |
| backface-visibility: hidden; |
| top: 250px; |
| left: 0; |
| background-color: red; |
| width: 100px; |
| height: 100px"> |
| </div> |
| </body> |
