代码示例:(标识:css_link_2)
<!DOCTYPE html>
<html>
<head>
<style>
a.one:link {color:#ff0000;}
a.one:visited {color:#0000ff;}
a.one:hover {color:#ffcc00;}

a.two:link {color:#ff0000;}
a.two:visited {color:#0000ff;}
a.two:hover {font-size:150%;}

a.three:link {color:#ff0000;}
a.three:visited {color:#0000ff;}
a.three:hover {background:#66ff66;}

a.four:link {color:#ff0000;}
a.four:visited {color:#0000ff;}
a.four:hover {font-family:monospace;}

a.five:link {color:#ff0000;text-decoration:none;}
a.five:visited {color:#0000ff;text-decoration:none;}
a.five:hover {text-decoration:underline;}
</style>
</head>
<body>

<p>请把鼠标移到链接上并观察样式的变化:</p>

<p><b><a class="one" href="/" target="_blank">此链接改变颜色</a></b></p>
<p><b><a class="two" href="/" target="_blank">此链接改变字体大小</a></b></p>
<p><b><a class="three" href="/" target="_blank">此链接改变背景色</a></b></p>
<p><b><a class="four" href="/" target="_blank">此链接改变字体族</a></b></p>
<p><b><a class="five" href="/" target="_blank">此链接改变文本装饰</a></b></p>

</body>
</html>
运行结果: