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| 1 <!DOCTYPE html> |
| 2 <script src="../../../resources/testharness.js"></script> |
| 3 <script src="../../../resources/testharnessreport.js"></script> |
| 4 <div id='testElem'></div> |
| 5 <script> |
| 6 |
| 7 test(function() { |
| 8 assert_equals(testElem.getAttribute('style'), null); |
| 9 testElem.style.setProperty('--foo', 'first'); |
| 10 assert_equals(testElem.style.getPropertyValue('--foo'), 'first'); |
| 11 assert_equals(getComputedStyle(testElem).getPropertyValue('--foo'), 'first'); |
| 12 assert_equals(testElem.getAttribute('style'), '--foo: first;'); |
| 13 testElem.style.setProperty('--foo', 'second'); |
| 14 assert_equals(testElem.style.getPropertyValue('--foo'), 'second'); |
| 15 assert_equals(testElem.getAttribute('style'), '--foo: second;'); |
| 16 }, "subsequent writes to inline style overwrite older values.") |
| 17 |
| 18 </script> |
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