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diff --git a/testing/web-platform/tests/css/css-anchor-position/anchor-scroll-to-sticky-004.html b/testing/web-platform/tests/css/css-anchor-position/anchor-scroll-to-sticky-004.html
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+++ b/testing/web-platform/tests/css/css-anchor-position/anchor-scroll-to-sticky-004.html
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+<!DOCTYPE html>
+<title>Tests scroll adjustments of element anchored to a sticky-position element</title>
+<link rel="author" href="mailto:wangxianzhu@chromium.org">
+<link rel="help" href="https://drafts.csswg.org/css-anchor-1/">
+<link rel="match" href="reference/anchor-scroll-to-sticky-004-ref.html">
+<style>
+body {
+  margin: 0;
+}
+
+div {
+  width: 100px;
+  height: 100px;
+}
+
+#scroller {
+  overflow: scroll;
+}
+
+.sticky {
+  position: sticky;
+  top: 0;
+}
+
+#anchor {
+  anchor-name: --a1;
+  height: 20px;
+  background: orange;
+}
+
+#anchored {
+  position: absolute;
+  anchor-default: --a1;
+  left: anchor(--a1 left);
+  top: anchor(--a1 bottom);
+  background: green;
+}
+
+</style>
+
+<!-- Anchored to later nested sticky elements. -->
+<div id="anchored"></div>
+<div id="scroller">
+  <div style="height: 50px"></div>
+  <div class="sticky">
+    <div style="height: 50px"></div>
+    <div id="anchor" class="sticky"></div>
+    <div style="height: 50px"></div>
+  </div>
+  <div style="height: 300px"></div>
+</div>
+
+<script>
+scroller.scrollTop = 200;
+</script>