<html>
<head>
<style>
div.a {
font-size: 15px;
}
div.b {
font-size: large;
}
div.c {
font-size: 150%;
}
</style>
</head>
<body>
<h1>The font-size Property</h1>
<div class="a">This is some text.</div>
<div class="b">This is some text.</div>
<div class="c">This is some text.</div>
</body>
</html>