mozilla-release/layout/reftests/text-decoration/skip-ink-cjk-2-ref.html

<!DOCTYPE html>
<html lang="ja">
<!-- lang=ja will cause the default japanese font to be used throughout -->
<meta charset="utf-8">
<style>
body {
  font: 16px/2 sans-serif;
}
.test {
  font: 32px sans-serif;
  text-decoration: 2px red underline;
  text-underline-offset: -1px; /* make underline clash with digits etc */
  text-decoration-skip-ink: none;
}
</style>
<div>The underline should not skip-ink in Japanese runs, even on embedded "common" characters:</div>
<div class=test>黄砂情報 実況図 / 予測図</div>
<div class=test>気象衛星 10分ごと / 2.5分ごと</div>
<div class=test>レーダー•ナウキャスト(降水•雷•竜巻)</div>