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<!DOCTYPE html>
<html lang=en>
<meta charset="utf-8">
<title>CSS test reference</title>
<style>
body > div {
border: solid 1px black;
padding: 10px;
margin: 10px;
float: left;
}
</style>
<p>Test passes if the two boxes below are identical.
<div style="writing-mode: vertical-rl; text-orientation: upright">
AB
</div>
<div style="writing-mode: vertical-rl; text-orientation: upright">
AB
</div>