gecko-dev/testing/web-platform/tests/css/css-writing-modes/reference/text-combine-upright-value-single-character.html

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS Writing Modes: text-combine-upright: all</title>
<link rel="author" title="Masataka Yakura" href="https://google.com/+MasatakaYakura">
<style>
@font-face {
  font-family: tcu-font;
  src: url("/fonts/tcu-font.woff");
}

.test {
  writing-mode: vertical-rl;
  font-size: 5em;
  font-family: tcu-font;
}

.tcy {
  text-combine-upright: all;
}
</style>
</head>
<body>

<p>Test passes if there are 2 <strong>identical</strong> white triangles.</p>

<div class="test">
  <p>3</p>
  <p>3</p>
</div>

</body>
</html>