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<!doctype html>
<meta charset="utf8">
<title>CSS Content Visibility: dialog shows under c-v auto (ref)</title>
<style>
.box { width: 100px; height: 100px; border: 1px solid black; }
.spacer { width: 10px; height: 3000px; background: lightblue; }
</style>
<div class=spacer></div>
<div id=container class=box>
content
<dialog id=dialog>PASS<div id=inner></div></dialog>
</div>
<script>
dialog.showModal();
</script>