<!doctype html>
<html lang="ja">
<meta charset="UTF-8">
<title>Bug 1229278 - Dynamic change to text-emphasis-style</title>
<style>
  div {
    line-height: 5;
    text-emphasis-style: filled triangle;
  }
</style>
<div>ใƒ†ใ‚นใƒˆ</div>
</html>