<!DOCTYPE html>
<!--
     Any copyright is dedicated to the Public Domain.
     http://creativecommons.org/publicdomain/zero/1.0/
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<html lang="ja">
<meta charset="utf-8">
<title>Reference: Text node insertion in 'display:ruby/block ruby'.</title>
<link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
<style>
html,body {
  color:black; background-color:white; font:10px/1 monospace; padding:0; margin:0;
}

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>

<ruby class=mbp>X<rt>る</rt></ruby>
<grid>A<ruby class=mbp>X<rt>る</rt></ruby>B</grid>
<grid>A<ruby class=mbp>X<rt>る</rt></ruby>B</grid>
<grid>A<ruby>X<rt>る</rt></ruby><ruby>X<rbc></rbc></ruby>B</grid>
<grid>A<ruby>X</ruby><ruby>X<rbc><rt>る</rt></rbc></ruby>B</grid>
<ruby>X<rt><rbb>Xる</rbb></rt></ruby>
<ruby>X<rbc><rbb>Xる</rbb></rbc></ruby>
<ruby>X<rtc><rbb>Xる</rbb></rtc></ruby>
<rbb class=mbp>X</rbb>
<rbb class=mbp>X<rt>る</rt></rbb>
<rbb class=mbp>X<rb>X</rb></rbb>

</html>