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diff --git a/testing/web-platform/tests/css/css-anchor-position/position-visibility-anchors-visible-non-intervening-container.html b/testing/web-platform/tests/css/css-anchor-position/position-visibility-anchors-visible-non-intervening-container.html
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+++ b/testing/web-platform/tests/css/css-anchor-position/position-visibility-anchors-visible-non-intervening-container.html
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+<!DOCTYPE html>
+<meta charset="utf-8">
+<meta name="assert" content="position-visibility: anchors-visible should consider the visibility of the anchor relative the containing scroller, ignoring visibility in other scrollers." />
+<title>CSS Anchor Positioning Test: position-visibility: anchors-visible</title>
+<link rel="help" href="https://drafts.csswg.org/css-anchor-position-1/#position-visibility">
+<link rel="match" href="position-visibility-anchors-visible-non-intervening-container-ref.html">
+<style>
+  #non-intervening-scroll-container {
+    overflow: hidden;
+    width: 200px;
+    height: 200px;
+    position: relative;
+  }
+
+  #position-container {
+    position: relative;
+  }
+
+  #scroll-container {
+    overflow: hidden scroll;
+    width: 400px;
+    height: 100px;
+  }
+
+  #anchor {
+    anchor-name: --a1;
+    width: 100px;
+    height: 100px;
+    background: orange;
+  }
+
+  #spacer {
+    height: 100px;
+  }
+
+  #target {
+    position-anchor: --a1;
+    position-visibility: anchors-visible;
+    inset-area: right;
+    width: 100px;
+    height: 100px;
+    background: green;
+    position: absolute;
+    top: 0;
+    left: 0;
+  }
+</style>
+
+<div id="non-intervening-scroll-container">
+  <div id="position-container">
+    <div id="scroll-container">
+      <!-- The anchor is not visible to the screen, but it is visible in the -->
+      <!-- containing block of anchor1 and target1, so the target should not -->
+      <!-- be hidden due to position-visibility: anchors-visible. -->
+      <div id="anchor">anchor</div>
+      <div id="spacer"></div>
+      <div id="target">target</div>
+    </div>
+  </div>
+</div>
+
+<script>
+  const non_intervening_scroller = document.getElementById('non-intervening-scroll-container');
+  non_intervening_scroller.scrollLeft = 100;
+</script>