<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8>
<style>
span {
font-family: Malgun Gothic, sans-serif;
font-size: 32px;
line-height: 64px;
}
</style>
</head>
<body>
<!-- stray U+115f should be invisible and not contribute any space -->
<span>aᅟb</span>
</body>
</html>