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<!DOCTYPE html>
<meta charset="utf-8">
<link rel="help" href="https://www.w3.org/TR/css-fonts-5/#font-size-adjust-prop">
<meta name="assert" content="Tests the simultaneous use of font-size-adjust and metrics override descriptorof of @font-face">
<title>Tests if font metric overrides reflect the adjustment of font-size-adjust.</title>
<style>
@font-face {
font-family: Ahem;
src: local(Ahem), url(/fonts/Ahem.ttf);
}
.reference {
font: 20px Ahem;
position: absolute;
top: 10px;
left: 10px;
}
.overridden-ascent-ref {
display: inline-block;
background-color: green;
width: 1em;
height: 1em; /* Scale a reference block to match the overridden ascent of 100%. */
}
.character {
display: inline-block;
background-color: green;
width: 2em; /* Double-size of an 'X' in Ahem */
height: 2em; /* Double-size of an 'X' in Ahem */
position: absolute;
/* Two times of difference between the overridden ascent and the original ascent */
top: 0.4em;
left: 1em;
}
.overridden-descent-ref {
display: inline-block;
background-color: green;
width: 1em;
height: 0.5em; /* Scale a reference block to match the overridden descen of 50%. */
position: absolute;
top: 2.5em;
left: 3em;
}
</style>
<!--
The three green rectangles below show ascent, character, and descent sizes
from the left. The ascent and descent are overridden by 100% and 50% of the
specified font size, respectively. The test applies font-size-adjust and font
metric overrides simultaneously to text. As we double the text size with
font-size-adjust, the ascent and descent override should scale accordingly
to double their size.
-->
<div class="reference">
<span class="overridden-ascent-ref"></span><span class="character"></span><span class="overridden-descent-ref"></span>
</div>
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