javascript 横向下拉菜单演示

时间：2022-09-26 01:11:42

<html xmlns="http://www.w3.org/1999/xhtml" lang="zh-CN">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>css横向下拉菜单演示</title>
<style type="text/css">

*{margin:0;padding:0;border:0;}
body {
 font-family: arial, 宋体, serif;
        font-size:12px;
}

#nav {
  line-height: 24px;  list-style-type: none; background:#666;
}

#nav a {
 display: block; width: 80px; text-align:center;
}

#nav a:link  {
 color:#666; text-decoration:none;
}
#nav a:visited  {
 color:#666;text-decoration:none;
}
#nav a:hover  {
 color:#FFF;text-decoration:none;font-weight:bold;
}

#nav li {
 float: left; width: 80px; background:#CCC;
}
#nav li a:hover{
 background:#999;
}
#nav li ul {
 line-height: 27px;  list-style-type: none;text-align:left;
 left: -999em; width: 180px; position: absolute;
}
#nav li ul li{
 float: left; width: 180px;
 background: #F6F6F6;
}

#nav li ul a{
 display: block; width: 180px;w\idth: 156px;text-align:left;padding-left:24px;
}

#nav li ul a:link  {
 color:#666; text-decoration:none;
}
#nav li ul a:visited  {
 color:#666;text-decoration:none;
}
#nav li ul a:hover  {
 color:#F3F3F3;text-decoration:none;font-weight:normal;
 background:#C00;
}

#nav li:hover ul {
 left: auto;
}
#nav li.sfhover ul {
 left: auto;
}
#content {
 clear: left;
}
 
</style>

<script type="text/javascript"><!--    //--><![CDATA[//><!--
    function menuFix() {
        var sfEls = document.getElementById("nav").getElementsByTagName("li");
        for (var i = 0; i < sfEls.length; i++) {
            sfEls[i].onmouseover = function () {
                this.className += (this.className.length > 0 ? " " : "") + "sfhover";
            }
            sfEls[i].onMouseDown = function () {
                this.className += (this.className.length > 0 ? " " : "") + "sfhover";
            }
            sfEls[i].onMouseUp = function () {
                this.className += (this.className.length > 0 ? " " : "") + "sfhover";
            }
            sfEls[i].onmouseout = function () {
                this.className = this.className.replace(new RegExp("( ?|^)sfhover\\b"),

"");
            }
        }
    }
    window.onload = menuFix;

//--><!]]></script>

</head>
<body>

<ul id="nav">
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</li>
<li><a href="#">成功案例</a>
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</body>
</html>

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