 digit; this is because "4" is also composed thus rotated.</figcaption>
</figure>
<p>In order to make reftests, it needs a font which contains geometric glyphs designed so that horizontally-combined glyphs and the reference would look the same (e.g. a 1em &times; 1em square glyph). With such font, a test can be written as follows:
<pre class="highlight"><code>&lt;style&gt;
.test {
  writing-mode: vertical-rl;
  font-family: Ahem;
}
.tcy {
  text-combine-upright: all;
}
&lt;/style&gt;

&lt;p&gt;Test passes i