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<!DOCTYPE html>
<html lang=en>
<meta charset="utf-8">
<title>CSS test reference</title>
<style>
.ref ol {
  text-orientation: upright;
}
.ref span {
  text-orientation: mixed;
}
figure {
  writing-mode: vertical-rl;
  border: solid 1px black;
  padding: 1em 0 1ch;
  margin: 0 1ch;
  float: left;
}
</style>
<p>Test passes if the two boxes below are identical.
<figure class=ref>
    <ol><li><span>hello世界</span></ol>
</figure>
<figure class=ref>
    <ol><li><span>hello世界</span></ol>
</figure>