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| (Empty) | |
| 1 <!DOCTYPE html> |
| 2 <script src="../../../resources/testharness.js"></script> |
| 3 <script src="../../../resources/testharnessreport.js"></script> |
| 4 |
| 5 <style> |
| 6 body { |
| 7 --b: 420px; |
| 8 } |
| 9 #element { |
| 10 --a: var(--b); |
| 11 width: 100px; |
| 12 height: 100px; |
| 13 background-color: red; |
| 14 transition: width 1s; |
| 15 } |
| 16 |
| 17 #element.triggered { |
| 18 width: var(--a); |
| 19 } |
| 20 </style> |
| 21 |
| 22 <div id='element'></div> |
| 23 |
| 24 <script> |
| 25 var test = async_test("this test passes if it doesn't assert"); |
| 26 |
| 27 requestAnimationFrame(x => { |
| 28 element.classList.add('triggered'); |
| 29 requestAnimationFrame(x => { |
| 30 requestAnimationFrame(x => { |
| 31 requestAnimationFrame(x => { |
| 32 requestAnimationFrame(x => { |
| 33 test.done(); |
| 34 }) |
| 35 }) |
| 36 }) |
| 37 }) |
| 38 }); |
| 39 </script> |
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