网页特效代码实例：一个用纯CSS制作的网页下拉菜单。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"
[ <!ELEMENT a (#PCDATA | table)* > ]>
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
<head>
<meta http-equiv="Content-Type" content="application/xhtml+xml; charset=UTF-8" />
<title> Drop Down Menu </title>
<style type="text/css">
body {font-size:1%; color:#fff;} /*get rid of the IE bug that prints the the end of the !doctype */
.menu {display:none;}
.holder {color:#000; width:90px; height:18px; display:block; background:#dca; border:1px solid #000; margin-right:1px; text-align:center; float:left; text-decoration:none; font-family:tahoma, vardana, arial, sans-serif; font-size:10px; line-height:18px; overflow:hidden;}
.holder:hover {height:auto; cursor:pointer;color:#fff; background:#000;}
a.inner, a.inner:visited {display:block; width:89px; height:18px; border-bottom:1px solid #000; text-decoration:none; color:#000; background:#eee;}
a.inner:hover {background:#add;}
p { color:#000; font-size:16px;}
</style>
<!--[if IE]>
<style type="text/css">
/*<![CDATA[*/
.holder {display:none;}
.menu {display:block;}
a.outer, a.outer:visited {color:#000; width:90px; height:18px; display:block; background:#dca; border:1px solid #000; margin-right:1px; text-align:center; float:left; text-decoration:none; font-family:tahoma, vardana, arial, sans-serif; font-size:10px; line-height:18px; overflow:hidden;}
a.outer:hover {color:#fff; background:#000; overflow:visible;}
a.outer:hover table {display:block; background:#eee; border-collapse:collapse;}
a.inner, a.inner:visited {display:block; width:88px; height:18px; border-bottom:1px solid #000; text-decoration:none; color:#000;font-family:tahoma, vardana, arial, sans-serif; font-size:10px; text-align:center;}
a.inner:hover {background:#add;}
/*]]>*/
</style>
<![endif]-->
</head>
<body>
<div class="menu">
<a class="outer" href="page1.html">MENU 1
<table><tr><td>
<a class="inner" href="page1a.html">Page 1a</a>
<a class="inner" href="page1b.html">Page 1b</a>
<a class="inner" href="page1c.html">Page 1c</a>
<a class="inner" href="page1d.html">Page 1d</a>
<a class="inner" href="page1e.html">Page 1e</a>
</td></tr></table>
</a>
<a class="outer" href="page1.html">MENU 2
<table><tr><td>
<a class="inner" href="page2a.html">Page 2a</a>
<a class="inner" href="page2b.html">Page 2b</a>
<a class="inner" href="page2c.html">Page 2c</a>
<a class="inner" href="page2d.html">Page 2d</a>
</td></tr></table>
</a>
</div>
<div class="holder">
MENU 1<br />
<a class="inner" href="page1a.html">Page 1a</a>
<a class="inner" href="page1b.html">Page 1b</a>
<a class="inner" href="page1c.html">Page 1c</a>
<a class="inner" href="page1d.html">Page 1d</a>
<a class="inner" href="page1e.html">Page 1e</a>
</div>
<div class="holder">
MENU 2<br />
<a class="inner" href="page2a.html">Page 2a</a>
<a class="inner" href="page2b.html">Page 2b</a>
<a class="inner" href="page2c.html">Page 2c</a>
<a class="inner" href="page2d.html">Page 2d</a>
</div>
</body>
</html>
