<html>
<body>
<div style="font-size: 20px">
<div style="font-family: 'Ahem'">this is ahem font</div>
<div style="font-family: 'Ahem'">this is ahem font</div>
<div style="font-family: 'Ahem'">this is ahem font</div>
<div>this is not ahem font</div>
</div>
</body>
</html>