| <!DOCTYPE html> | |
| <script> | |
| if (window.internals) | |
| internals.useMockOverlayScrollbars(); | |
| </script> | |
| <div style="position: relative; width: 200px; height: 200px; overflow: scroll"> | |
| <!-- the intermediate div doesn't have layout overflow. --> | |
| <div style="position: relative; width: 210px; height: 80px; overflow: scroll"> | |
| <div style="position: absolute; z-index: 5; background: green; width: 200px; height: 70px"></div> | |
| </div> | |
| <div style="height: 210px"></div> | |
| </div> |