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<!DOCTYPE html>
<meta charset="utf-8">
<link rel="author" href="mailto:xiaochengh@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-fonts-4/#font-metrics-override-desc">
<link rel="match" href="ascent-descent-override-ref.html">
<title>Tests the ascent-override and descent-override descriptors of @font-face</title>
<style>
@font-face {
font-family: Ahem;
src: local(Ahem), url(/fonts/Ahem.ttf);
/* The default ascent and descent are 80% and 20%, respectively. */
ascent-override: 100%;
descent-override: 50%;
}
.target {
font: 20px Ahem;
color: green;
position: absolute;
top: 10px;
left: 10px;
}
.top-aligned {
display: inline-block;
background-color: green;
vertical-align: top;
width: 1em;
height: 1em; /* Same as the overridden ascent */
}
.bottom-aligned {
display: inline-block;
background-color: green;
vertical-align: bottom;
width: 1em;
height: 0.5em; /* Same as the overridden descent */
}
</style>
<div class="target">
<span class="top-aligned"></span>X<span class="bottom-aligned"></span>
</div>
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