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diff --git a/testing/web-platform/tests/scroll-animations/css/scroll-timeline-paused-animations.html b/testing/web-platform/tests/scroll-animations/css/scroll-timeline-paused-animations.html
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+++ b/testing/web-platform/tests/scroll-animations/css/scroll-timeline-paused-animations.html
@@ -0,0 +1,95 @@
+<!DOCTYPE html>
+<meta charset=utf-8>
+<title>Scroll timeline with paused animations</title>
+<link rel="help" href="https://drafts.csswg.org/scroll-animations-1/#scroll-notation">
+<link rel="help" href="https://drafts.csswg.org/css-animations/#animation-play-state">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/scroll-animations/scroll-timelines/testcommon.js"></script>
+<script src="/css/css-animations/support/testcommon.js"></script>
+<script src="support/testcommon.js"></script>
+<style>
+  @keyframes anim {
+    from { width: 100px; }
+    to { width: 200px; }
+  }
+
+  .fill-vh {
+    width: 100px;
+    height: 100vh;
+  }
+</style>
+<body>
+<div id="log"></div>
+<script>
+'use strict';
+
+setup(assert_implements_animation_timeline);
+
+async function resetScrollPosition() {
+  // Reset to 0 so we don't affect following tests.
+  document.scrollingElement.scrollTop = 0;
+  return waitForNextFrame();
+}
+
+promise_test(async t => {
+  const div = addDiv(t, { style: 'width: 50px; height: 100px;' });
+  const filling = addDiv(t, { class: 'fill-vh' });
+  const scroller = document.scrollingElement;
+  t.add_cleanup(resetScrollPosition);
+
+  div.style.animation = 'anim 100s linear paused';
+  div.style.animationTimeline = 'scroll(root)';
+  await waitForCSSScrollTimelineStyle();
+
+  const anim = div.getAnimations()[0];
+  await anim.ready;
+  assert_percents_equal(anim.currentTime, 0, 'timeline time reset');
+  assert_equals(getComputedStyle(div).width, '100px');
+
+  const maxScroll = scroller.scrollHeight - scroller.clientHeight;
+  scroller.scrollTop = maxScroll;
+  await waitForNextFrame();
+  assert_equals(getComputedStyle(div).width, '100px');
+
+}, 'Test that the scroll animation is paused');
+
+promise_test(async t => {
+  const div = addDiv(t, { style: 'width: 50px; height: 100px;' });
+  const filling = addDiv(t, { class: 'fill-vh' });
+  const scroller = document.scrollingElement;
+  await waitForNextFrame();
+
+  div.style.animation = 'anim 100s linear forwards';
+  div.style.animationTimeline = 'scroll(root)';
+  await waitForCSSScrollTimelineStyle();
+
+  const anim = div.getAnimations()[0];
+  await anim.ready;
+  assert_percents_equal(anim.currentTime, 0, 'timeline time reset');
+  assert_equals(getComputedStyle(div).width, '100px');
+
+  await waitForNextFrame();
+  const maxScroll = scroller.scrollHeight - scroller.clientHeight;
+  scroller.scrollTop = maxScroll;
+  await waitForNextFrame();
+  assert_equals(getComputedStyle(div).width, '200px');
+
+  div.style.animationPlayState = 'paused';
+  assert_equals(anim.playState, 'paused');
+  assert_equals(getComputedStyle(div).width, '200px',
+                'Current time preserved when pause-pending.');
+  assert_true(anim.pending,
+              'Pending state after changing animationPlayState');
+  await anim.ready;
+  assert_equals(getComputedStyle(div).width, '200px',
+                'Current time preserved when paused.');
+  assert_percents_equal(anim.timeline.currentTime, 100);
+  document.scrollingElement.scrollTop = 0;
+  await waitForNextFrame();
+  assert_percents_equal(anim.timeline.currentTime, 0);
+  assert_equals(getComputedStyle(div).width, '200px');
+}, 'Test that the scroll animation is paused by updating animation-play-state');
+
+</script>
+</body>