<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">

<style type="text/css" id="style1">
@font-face {
  font-family: foo;
  src: local("Arial"),
       local("DejaVu Sans"),
       local("Free Sans"),
       local("Open Sans"),
       local("Droid Sans"),
       local("Roboto");
}
</style>

<style type="text/css">
body {
  font-family: serif;
}
.test {
  font-family: foo;
}
</style>

</head>

<body>
<div>
foo <span class="test">bar</span> baz
</div>
</body>

</html>