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<!DOCTYPE html>
<meta charset="UTF-8">
<title>CSS Highlight API Test: </title>
<head>
<style>
div {
margin: 50px;
font-size: 40px;
text-underline-offset: 0.5em;
text-decoration-line: underline;
text-decoration-color: green;
text-decoration-thickness: 0.25rem;
}
#h2 {
font-size: 20px;
}
</style>
</head>
<body>
<div id="h1">Font relative units with 40px font</div>
<div id="h2">Font relative units with 20px font</div>
</body>