<!DOCTYPE html><metacharset="utf-8"><title>CSS Values and Units Test: the ch unit in vertical orientation</title><linkrel="author"title="Florian Rivoal"href="http://florian.rivoal.net/"><linkrel="help"href="https://drafts.csswg.org/css-values-3/#font-relative-lengths"><linkrel="help"href="https://www.w3.org/TR/css-writing-modes-3/#block-flow"><linkrel="help"href="https://www.w3.org/TR/css-writing-modes-3/#text-orientation"><linkrel="match"href="reference/ch-unit-002-ref.html"><metaname="assert"content="In vertical upright, the ch unit is equal to the used vertical advance measure of the 0 (ZERO, U+0030) glyph found in the font used to render it."><style>span{background:green;color:green;left:0;right:0;position:absolute;}div{background:red;color:red;position:relative;height:5ch;width:10ch;writing-mode:vertical-rl;text-orientation:upright;}div+div{height:auto;}div+divspan{height:5ch;}</style><body><p>Test passes if there is a <strong>filled green square</strong> and <strong>no red</strong>.</p><div><span>00000</span></div><div><span></span>00000</div></body>
