| <!DOCTYPE html> |
| <link rel="match" href="backdrop-does-not-inherit-ref.html"> |
| <link rel="help" href="https://fullscreen.spec.whatwg.org/#new-stacking-layer"> |
| <style> |
| dialog { |
| visibility: inherit; |
| background: red; |
| } |
| |
| dialog::backdrop { |
| position: absolute; |
| top: 100px; |
| left: 100px; |
| height: 100px; |
| width: 100px; |
| visibility: inherit; |
| background: green; |
| } |
| </style> |
| <body> |
| Test that ::backdrop does not inherit from anything. The test passes if there is |
| a green box and no red. |
| <div style="visibility: hidden"> |
| <dialog></dialog> |
| </div> |
| <script> |
| document.querySelector('dialog').showModal(); |
| </script> |
| </body> |