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<!DOCTYPE html>
<meta charset="UTF-8">
<title>CSS Values and Units Test: ch unit in height with 'text-orientation: upright'</title>
<link rel="author" title="Gérard Talbot" href="">
<link rel="help" href="">
<link rel="match" href="reference/ch-unit-011-ref.html">
<meta name="assert" content="In this test, the ch unit is the advance height measure of the 0 (ZERO, U+0030) glyph.">
float: left;
font-size: 80px; /* arbitrary font size */
text-orientation: upright;
writing-mode: vertical-rl;
background-color: blue;
height: 5ch;
width: 1.8em;
background-color: orange;
color: orange;
line-height: 1.8; /* arbitrary line-height */
<p>Test passes if there is a blue rectangle with the <strong>same height</strong> as an orange rectangle.
<div id="test-blue"></div>
<div id="reference-orange">00000</div>