| <!DOCTYPE html> | |
| <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> |