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+<!--
+ Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>Test that overlay scrollbars are covered by positioned siblings with higher z-index even when the scrollable frame has a positioned descendant</title>
+
+<style>
+
+#outer {
+ width: 200px;
+ height: 200px;
+ overflow: auto;
+}
+
+#content {
+ height: 400px;
+ background: cyan;
+ position: relative;
+ z-index: 1;
+}
+
+#cover {
+ width: 200px;
+ height: 200px;
+ background: cyan;
+ position: absolute;
+ z-index: 2;
+}
+
+</style>
+
+<div id="cover"></div>
+<div id="outer"><div id="content"></div></div>