| <!DOCTYPE html> |
| <title>CSS Cascade: 'revert' in implicit keyframes</title> |
| <link rel="help" href="https://drafts.csswg.org/css-cascade/#default"> |
| <link rel="help" href="https://crbug.com/1065387"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <h1 id=h1></h1> |
| <h1 id=ref></h1> |
| <script> |
| test(function() { |
| let expected_lower = parseInt(getComputedStyle(ref).marginTop); |
| let expected_upper = expected_lower * 2; |
| h1.style = `margin-top: ${expected_lower * 1000}px; margin-top: revert;`; |
| |
| h1.animate([ |
| { marginTop: `${expected_upper}px` }, |
| ], { |
| duration: 1000, |
| delay: -500, |
| }).pause(); |
| |
| let actual = parseInt(getComputedStyle(h1).marginTop); |
| |
| // This test assumes that the UA style sheet sets a non-0px value on |
| // <h1> elements: |
| assert_not_equals(expected_lower, 0); |
| assert_not_equals(expected_upper, 0); |
| assert_between_exclusive(actual, expected_lower, expected_upper); |
| }, 'The revert keyword works in implicit keyframes'); |
| </script> |
