| <!DOCTYPE html> |
| <title>Layout Instability: shift out of viewport in inline direction</title> |
| <link rel="help" href="https://wicg.github.io/layout-instability/" /> |
| <style> |
| #j { position: absolute; width: 200px; height: 600px; background: blue; } |
| </style> |
| <div id='j'></div> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="resources/util.js"></script> |
| <script> |
| |
| promise_test(async () => { |
| const watcher = new ScoreWatcher; |
| |
| // Wait for the initial render to complete. |
| await waitForAnimationFrames(2); |
| |
| // Move div out of viewport horizontally. |
| document.querySelector("#j").style.left = '-300px'; |
| |
| await waitForAnimationFrames(3); |
| assert_equals(watcher.score, 0); |
| }, "Shift out of viewport in inline direction."); |
| |
| </script> |
| |