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diff --git a/testing/web-platform/tests/css/css-contain/container-queries/change-display-in-container.html b/testing/web-platform/tests/css/css-contain/container-queries/change-display-in-container.html
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+++ b/testing/web-platform/tests/css/css-contain/container-queries/change-display-in-container.html
@@ -0,0 +1,27 @@
+<!doctype html>
+<title>CSS Container Queries Test: Change display and box inside a container</title>
+<link rel="help" href="https://drafts.csswg.org/css-contain-3/#container-queries">
+<link rel="match" href="change-display-in-container-ref.html">
+<style>
+  .fail { display: inline; }
+  .pass { display: none; }
+  #container { container-type: size; width: 100px; }
+  @container (min-width: 200px) {
+    .fail { display: none; }
+    .pass { display: inline; }
+  }
+</style>
+<p>You should see the word PASS below.</p>
+<div id="container">
+  <span>
+    <span class="fail">FAIL</span>
+  </span>
+  <span>
+    <span class="pass">PASS</span>
+    <span class="fail">FAIL</span>
+  </span>
+</div>
+<script>
+  container.offsetTop;
+  container.style.width = "auto";
+</script>