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diff --git a/testing/web-platform/tests/css/css-contain/content-visibility/content-visibility-046.html b/testing/web-platform/tests/css/css-contain/content-visibility/content-visibility-046.html
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index 0000000000..6f1cd28e39
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+++ b/testing/web-platform/tests/css/css-contain/content-visibility/content-visibility-046.html
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+<!doctype HTML>
+<html class="reftest-wait">
+<meta charset="utf8">
+<title>Content Visibility: viewport auto painting.</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="container-with-child-ref.html">
+<meta name="assert" content="viewport intersection paints the content-visibility auto element">
+<script src="/common/reftest-wait.js"></script>
+
+<style>
+#container {
+  width: 150px;
+  height: 150px;
+  background: lightblue;
+}
+#child {
+  width: 50px;
+  height: 50px;
+  background: green;
+}
+.auto {
+  content-visibility: auto;
+}
+</style>
+
+<div id=container class=auto>
+  Test passes if you can see this text and a green box.
+  <div id=child></div>
+</div>
+
+<script>
+
+function runTest() {
+  document.getElementById("target").classList.add("auto");
+  requestAnimationFrame(takeScreenshot);
+}
+
+window.onload = requestAnimationFrame(
+  () => requestAnimationFrame(takeScreenshot));
+
+</script>
+</html>
+
+