| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <title>CSS Test: A Web Animations on ::backdrop</title> |
| <link rel="help" href="https://fullscreen.spec.whatwg.org/#::backdrop-pseudo-element"> |
| <link rel="match" href="backdrop-animate-002-ref.html"> |
| <dialog id="target">Dialog contents</dialog> |
| <!-- This test fails on WPT.fyi with off-by-one on the green background (Chrome-only): --> |
| <meta name="fuzzy" content="maxDifference=0-1;totalPixels=0-472500"> |
| <script> |
| const target = document.getElementById("target"); |
| target.showModal(); |
| target.animate({ |
| opacity: [0.1, 0.1], |
| backgroundColor: ["green", "green"] |
| }, { |
| pseudoElement: "::backdrop", |
| duration: Infinity |
| }); |
| </script> |
