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+<!DOCTYPE html>
+<title>Nested position:sticky table elements should render correctly</title>
+<link rel="match" href="position-sticky-nested-table-ref.html" />
+<link rel="help" href="https://www.w3.org/TR/css-position-3/#sticky-pos" />
+<meta name="assert" content="This test checks that nested position:sticky table elements render correctly" />
+
+<script src="../resources/ref-rectangle.js"></script>
+
+<style>
+.group {
+  display: inline-block;
+  position: relative;
+  width: 150px;
+  height: 250px;
+}
+
+.scroller {
+  position: relative;
+  width: 100px;
+  height: 200px;
+  overflow-x: hidden;
+  overflow-y: auto;
+}
+
+.contents {
+  height: 700px;
+}
+
+.prepadding {
+  height: 100px;
+}
+
+table {
+  border-collapse: collapse;
+}
+
+td, th {
+  height: 50px;
+  width: 50px;
+  padding: 0;
+}
+
+th {
+  background: green;
+}
+
+.sticky {
+  position: sticky;
+  top: 25px;
+}
+
+.indicator {
+  position: absolute;
+  left: 0;
+  background-color: red;
+  height: 50px;
+  width: 50px;
+}
+
+</style>
+
+<script>
+window.addEventListener('load', function() {
+  document.getElementById('scroller1').scrollTop = 50;
+  document.getElementById('scroller2').scrollTop = 125;
+  document.getElementById('scroller3').scrollTop = 250;
+});
+</script>
+
+<div>You should see three green rectangles below. No red or blue should be visible.</div>
+
+<div class="group">
+  <div id="scroller1" class="scroller">
+    <div class="contents">
+      <div class="indicator" style="top: 100px;"></div>
+      <div class="prepadding"></div>
+      <table>
+        <thead class="sticky">
+          <tr>
+            <th class="sticky"></th>
+          </tr>
+        </thead>
+        <tbody>
+          <tr><td></td></tr>
+          <tr><td></td></tr>
+          <tr><td></td></tr>
+        </tbody>
+      </table>
+    </div>
+  </div>
+</div>
+
+<div class="group">
+  <div id="scroller2" class="scroller">
+    <div class="contents">
+      <div class="indicator" style="top: 150px;"></div>
+      <div class="prepadding"></div>
+      <table>
+        <thead class="sticky">
+          <tr>
+            <th class="sticky"></th>
+          </tr>
+        </thead>
+        <tbody>
+          <tr><td></td></tr>
+          <tr><td></td></tr>
+          <tr><td></td></tr>
+        </tbody>
+      </table>
+    </div>
+  </div>
+</div>
+
+<div class="group">
+  <div id="scroller3" class="scroller">
+    <div class="contents">
+      <div class="indicator" style="top: 250px;"></div>
+      <div class="prepadding"></div>
+      <table>
+        <thead class="sticky">
+          <tr>
+            <th class="sticky"></th>
+          </tr>
+        </thead>
+        <tbody>
+          <tr><td></td></tr>
+          <tr><td></td></tr>
+          <tr><td></td></tr>
+        </tbody>
+      </table>
+    </div>
+  </div>
+</div>