<!DOCTYPE html>
<!--
     Any copyright is dedicated to the Public Domain.
     http://creativecommons.org/publicdomain/zero/1.0/
-->
<html style="display: flex; justify-content: center">
<head>
 <title>CSS Reftest Reference</title>
 <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
  <style>
    div {
      display: flex;
      justify-content: center;
    }
  </style>
</head>
<body>
  <div>centered</div>
</body>
</html>