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diff --git a/layout/reftests/async-scrolling/perspective-scrolling-1-ref.html b/layout/reftests/async-scrolling/perspective-scrolling-1-ref.html
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index 000000000..433aa7abb
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+++ b/layout/reftests/async-scrolling/perspective-scrolling-1-ref.html
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+<!DOCTYPE html>
+<html lang="en">
+<meta charset="utf-8">
+<title>Perspective scrolling</title>
+
+<style>
+
+html {
+  height: 100%;
+  overflow: hidden;
+}
+
+body {
+  height: 100%;
+  perspective: 1px;
+  overflow: auto;
+  margin: 0;
+}
+
+div {
+  height: 4000px;
+  margin: 200px 100px;
+  border: 10px solid black;
+}
+
+</style>
+
+<div></div>
+
+<script>
+
+document.body.scrollTop = 100;
+
+</script>