| <!DOCTYPE html> |
| <html class=reftest-wait> |
| <title>::backdrop for a fullscreen iframe element</title> |
| <link rel=match href="backdrop-iframe-ref.html"> |
| <link rel=help href="https://github.com/w3c/csswg-drafts/issues/6939"> |
| <script src="/resources/testdriver.js"></script> |
| <script src="/resources/testdriver-vendor.js"></script> |
| |
| <style> |
| iframe::backdrop { |
| background: green; |
| } |
| </style> |
| <iframe></iframe> |
| <script> |
| document.addEventListener('fullscreenchange', () => { |
| document.documentElement.classList.remove('reftest-wait'); |
| }); |
| test_driver.bless('fullscreen', () => { |
| document.querySelector('iframe').requestFullscreen(); |
| }); |
| </script> |
