| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <title>CSS Animations: Dependent property updates correctly when animating a declared custom property</title> |
| <link rel="help" href="https://drafts.csswg.org/css-animations/"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="support/testcommon.js"></script> |
| <style> |
| @property --c { |
| syntax: "<color>"; |
| inherits: true; |
| initial-value: black; |
| } |
| @keyframes color-shift { |
| 0% { |
| --c: black; |
| } |
| 100% { |
| --c: white; |
| } |
| } |
| #target { |
| color: var(--c); |
| animation: color-shift 1s linear 1 forwards paused |
| } |
| </style> |
| <div id=target></div> |
| <div id="log"></div> |
| <script> |
| |
| test(t => { |
| const animation = target.getAnimations()[0]; |
| |
| assert_equals( |
| getComputedStyle(target).color, |
| 'rgb(0, 0, 0)' |
| ); |
| |
| animation.currentTime = 500; |
| |
| assert_equals( |
| getComputedStyle(target).color, |
| 'rgb(128, 128, 128)' |
| ); |
| |
| animation.currentTime = 1000; |
| |
| assert_equals( |
| getComputedStyle(target).color, |
| 'rgb(255, 255, 255)' |
| ); |
| |
| }, 'Dependent property updates correctly'); |
| |
| </script> |
