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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>CSS Reftest Reference</title>
<link rel="author" title="Tsutomu ogaoga Ogasawara" href="mailto:info@ogaoga.org">
<style type="text/css">
.container {
color: white;
}
.item {
writing-mode: vertical-rl;
background: green;
height: 3em;
width: 3em;
}
</style>
</head>
<body>
<p>The test passes if you see a tall green box with pairs of the digits 1-9 listed top to bottom in two columns.</p>
<div class="container">
<div class="item">123<br />123</div>
<div class="item">456<br />456</div>
<div class="item">789<br />789</div>
</div>
</body>
</html>