<!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>