css/css-ruby/block-ruby-002.html

<!DOCTYPE html>
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<html lang="ja">
<meta charset="utf-8">
<title>CSS Ruby Test: blockification/inlinification of 'display:ruby/block ruby'.</title>
<link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
<link rel="help" href="https://drafts.csswg.org/css-display/#propdef-display">
<link rel="help" href="https://drafts.csswg.org/css-ruby-1/#box-fixup">
<link rel="help" href="https://drafts.csswg.org/css-display-3/#inlinify">
<link rel="match" href="block-ruby-002-ref.html">
<style>
ruby { display: ruby; background: lightblue; }
rbb { display: block ruby; background: lightblue; }
grid { display: grid; }
.mbp {
  margin: 1px 3px 5px 7px;
  padding: 3px 5px 7px 1px;
  border-width: 3px 1px 7px 5px;
  border-style: solid;
}
rbc {
  display: ruby-base-container;
  unicode-bidi: isolate;
}
rtc {
  display: ruby-text-container;
  unicode-bidi: isolate;
}
</style>
<grid>A<ruby>べ<rt>る</rt></ruby>B</grid>
<grid>A<ruby class=mbp>べ<rt>る</rt></ruby>B</grid>
<grid>A
    <ruby>べ<rt>る</rt></ruby>
    <ruby><rbc>一</rbc><rbc>二</rbc><rbc>三</rbc><rbc>四</rbc><rbc>五</rbc><rbc>六</rbc><rbc>七</rbc><rbc>八</rbc></ruby>
B
</grid>
<ruby>べ<rt><rbb>る</rbb></rt></ruby>
<ruby>べ<rbc><rbb>る</rbb></rbc></ruby>
<ruby>べ<rtc><rbb>る</rbb></rtc></ruby>
<ruby>べ<rbb>る</rbb></ruby>

<pre></pre>
<script>
let ruby = Array.prototype.slice.call(document.querySelectorAll('ruby,rbb'));
let result = ruby.map(e => window.getComputedStyle(e).display + ', ').reduce((s, t) => s + t, "");
document.querySelector('pre').appendChild(document.createTextNode(result));
</script>
</html>