<html>
<head>
<style type="text/css">
p.normal {font-style:normal}
p.italic {font-style:italic}
p.oblique {font-style:oblique}
</style>
</head>
<body>
<p class="normal">This is a paragraph, normal.</p>
<p class="italic">This is a paragraph, italic.</p>
<p class="oblique">This is a paragraph, oblique.</p>
</body>
</html>
执行效果：
