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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS Test Reference</title>
<style>
.test {
writing-mode: vertical-rl;
}
</style>
</head>
<body>
<p>Test passes if the following paragraphs are identical:</p>
<div class="test">
<p>6月19日</p>
<p>6月19日</p>
</div>
</body>
</html>