mozilla-release/layout/reftests/css-ruby/ruby-intercharacter-1-ref.htm

<!DOCTYPE html>
<!--
Reftest 1 for Bug 1395777 (reference file)
-->
<html lang="zh-TW">
<head>
<meta charset="UTF-8">
<style>
body {
  font-size: 30px;
  line-height: 1;
}
.rbc {
  height: 30px;
  display: inline-block;
  vertical-align: top;
}
.rtc {
  height: 30px;
  display: inline-block;
  writing-mode: vertical-rl;
  text-orientation: upright;
  vertical-align: top;
  text-align: center;
  font-size: 30%;
}
</style>
</head>
<body>
  <div>
    <span class="rbc">BASE</span><span class="rtc">RT</span>
  </div>
</body>
</html>