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Test Info:

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<title>CSS Test: Hiragana/Katakana kerning</title>
<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
<!-- Based on testcase by Harry Dalton, see https://bugzilla.mozilla.org/show_bug.cgi?id=1811471;
check that kerning works between hiragana and katakana, because both map to the same
OpenType script behavior. -->
<link rel="mismatch" href="hiragana-katakana-kerning-notref.html">
<style>
@font-face {
font-family: "Noto Sans JP";
src: url(resources/NotoSansJP-kana_test-subset.otf);
}
p {
position: absolute;
top: 0;
left: 0;
font-size: 6em;
font-family: "Noto Sans JP";
font-feature-settings: "palt" on;
margin: 1em;
}
.with-kerning {
font-kerning: normal;
color: red;
}
.no-kerning {
font-kerning: none;
color: green;
mix-blend-mode: multiply;
}
</style>
</head>
<body>
<span>
RED or GREEN text is visible if kerning is applying correctly, with only
BLACK otherwise:
</span>
<p class="with-kerning">すペ</p>
<p class="no-kerning">すペ</p>
</body>
</html>