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<!DOCTYPE html>
<html>
<head>
<title>italic correction for subscripts</title>
<meta charset="utf-8"/>
<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=945254">
<link rel="help" href="https://w3c.github.io/mathml-core/#dfn-italic-correction">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script type="text/javascript">
function verifyItalicCorrections()
{
var epsilon = 2;
for (var i = 0; i < 8; i += 2) {
var sub = document.getElementById("s" + i);
var sup = document.getElementById("s" + (i+1));
var italicCorrection =
sup.getBoundingClientRect().left - sub.getBoundingClientRect().left;
assert_greater_than(italicCorrection, epsilon);
}
}
promise_test(() => {
return new Promise(resolve => {
window.addEventListener("load", resolve);
}).then(verifyItalicCorrections);
}, "Italic correction of base is used to place subscripts.");
</script>
<style>
math { font-size: 50px; }
</style>
</head>
<body>
<div>
<math>
<msubsup>
<mi mathbackground="#5f5">f</mi>
<mspace id="s0" width="50px" height="50px" mathbackground="blue"/>
<mspace id="s1" width="50px" height="50px" mathbackground="blue"/>
</msubsup>
</math>
</div>
<br/>
<div>
<math>
<mmultiscripts>
<mi mathbackground="#5f5">f</mi>
<mspace id="s2" width="50px" height="50px" mathbackground="blue"/>
<mspace id="s3" width="50px" height="50px" mathbackground="blue"/>
<mspace id="s4" width="50px" height="50px" mathbackground="blue"/>
<mspace id="s5" width="50px" height="50px" mathbackground="blue"/>
<mspace id="s6" width="50px" height="50px" mathbackground="blue"/>
<mspace id="s7" width="50px" height="50px" mathbackground="blue"/>
</mmultiscripts>
</math>
</div>
</body>
</html>
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