<!DOCTYPE html>
<html lang="ja">
<meta charset="UTF-8">
<title>Meet the specification for line breaking between ruby bases</title>
<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org">
<link rel="author" title="Mozilla" href="https://www.mozilla.org">
<link rel="stylesheet" href="support/ruby-common.css">
<style>
  body { line-height: 3; font-kerning: none; }
  span { white-space: nowrap; }
</style>
<div style="width: .5em; border: 1px solid silver;">
  <span>「</span><span>な</span><span>に</span><span>、</span><span>誰</span><span>？</span><span>」</span><span>「</span><span>私</span><span>です</span><span>」</span>
</div>