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+++ b/testing/web-platform/tests/css/css-contain/content-visibility/content-visibility-011.html
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+<!doctype HTML>
+<html class="reftest-wait">
+<meta charset="utf8">
+<title>CSS Content Visibility: hidden stops painting when added (positioned with a positioned child)</title>
+<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
+<link rel="help" href="https://drafts.csswg.org/css-contain/#content-visibility">
+<link rel="match" href="positioned-container-ref.html">
+<meta name="assert" content="content-visibility subtrees stop painting when hidden is added">
+
+<script src="/common/reftest-wait.js"></script>
+
+<style>
+#container {
+  width: 150px;
+  height: 150px;
+  background: lightblue;
+}
+.positioned {
+  position: absolute;
+  top: 0;
+  left: 0;
+}
+.hidden {
+  content-visibility: hidden;
+}
+#child {
+  width: 50px;
+  height: 50px;
+  background: red;
+}
+</style>
+
+<div id=container class=positioned>
+  Test fails if you can see this text or a red box below.
+  <div id=child class=positioned></div>
+</div>
+
+<script>
+function runTest() {
+  const container = document.getElementById("container");
+  container.classList.add("hidden");
+  requestAnimationFrame(takeScreenshot);
+}
+
+window.onload = runTest;
+</script>
+</html>