简洁漂亮的网页左侧导航菜单，鼠标经过时弹出二级菜单效果，这个菜单特效兼容当前主流浏览器。
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script>
startList = function()
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if (document.all&&document.getElementById)
{
navRoot = document.getElementById("nav");
for (i=0; i<navRoot.childNodes.length; i++)
{
node = navRoot.childNodes[ i ];
if (node.nodeName=="LI")
{
node.onmouseover=function()
{this.className+=" over";}
node.onmouseout=function()
{this.className=this.className.replace(" over", "");}
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}
}
}
window.onload=startList;
</script>
<style>
body {
font: normal 11px verdana;
}
ul {
margin: 0;
padding: 0;
list-style: none;
width: 150px; /* Width of Menu Items */
border-bottom: 1px solid #ccc;
}
ul li {
position: relative;
}
li ul {
position: absolute;
left: 149px; /* Set 1px less than menu width */
top: 0;
display: none;
}
/* Styles for Menu Items */
ul li a {
display: block;
text-decoration: none;
color: #777;
background: #fff; /* IE6 Bug */
padding: 5px;
border: 1px solid #ccc;
border-bottom: 0;
}
/* Fix IE. Hide from IE Mac \*/
* html ul li { float: left; height: 1%; }
* html ul li a { height: 1%; }
/* End */
ul li a:hover { color: #E2144A; background: #f9f9f9; } /* Hover Styles */
li ul li a { padding: 2px 5px; } /* Sub Menu Styles */
li:hover ul, li.over ul { display: block; } /* The magic */
</style>
</head>
<body>
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<ul id="nav">
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