<html>
<head>
<style type="text/css">
p.abc { color: blue }
p.abc.def { color: red }
</style>
</head>
<body>
    <h1>Html Heading</h1>
    <p>fzz</p>
    <h2>Html Heading</h2>
    <p class="abc">fzz</p>
    <p class="abc def">fzz</p>
    <p>Here is an example that shows that the CSS processor in Word is really pretty crappy.</p>
</body>
</html>