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css结合js制作下拉菜单代码

2014-02-27 08:58 696 查看
 <%@page pageEncoding="utf-8"

contentType="text/html;charset=utf-8" %>

 <HTML>

    <HEAD>

        <title>WebForm5</title>

        <style>/* Root = Horizontal, Secondary = Vertical */

ul#navmenu-h {

  margin: 0;

  border: 0 none;

  padding: 0;

  width: 500px; /*For KHTML*/

  list-style: none;

  height: 24px;

}

ul#navmenu-h li {

  margin: 0;

  border: 0 none;

  padding: 0;

  float: left; /*For Gecko*/

  display: inline;

  list-style: none;

  position: relative;

  height: 24px;

}

ul#navmenu-h ul {

  margin: 0;

  border: 0 none;

  padding: 0;

  width: 160px;

  list-style: none;

  display: none;

  position: absolute;

  top: 24px;

  left: 0;

}

ul#navmenu-h ul:after /*From IE 7 lack of compliance*/{

  clear: both;

  display: block;

  font: 1px/0px serif;

  content: ".";

  height: 0;

  visibility: hidden;

}

ul#navmenu-h ul li {

  width: 160px;

  float: left; /*For IE 7 lack of compliance*/

  display: block !important;

  display: inline; /*For IE*/

}

/* Root Menu */

ul#navmenu-h a {

  border: 1px solid #FFF;

  border-right-color: #CCC;

  border-bottom-color: #CCC;

  padding: 0 6px;

  float: none !important; /*For Opera*/

  float: left; /*For IE*/

  display: block;

  background: #EEE;

  color: #666;

  font: bold 10px/22px Verdana, Arial, Helvetica, sans-serif;

  text-decoration: none;

  height: auto !important;

  height: 1%; /*For IE*/

}

/* Root Menu Hover Persistence */

ul#navmenu-h a:hover,

ul#navmenu-h li:hover a,

ul#navmenu-h li.iehover a {

  background: #CCC;

  color: #FFF;

}

/* 2nd Menu */

ul#navmenu-h li:hover li a,

ul#navmenu-h li.iehover li a {

  float: none;

  background: #EEE;

  color: #666;

}

/* 2nd Menu Hover Persistence */

ul#navmenu-h li:hover li a:hover,

ul#navmenu-h li:hover li:hover a,

ul#navmenu-h li.iehover li a:hover,

ul#navmenu-h li.iehover li.iehover a {

  background: #CCC;

  color: #FFF;

}

/* 3rd Menu */

ul#navmenu-h li:hover li:hover li a,

ul#navmenu-h li.iehover li.iehover li a {

  background: #EEE;

  color: #666;

}

/* 3rd Menu Hover Persistence */

ul#navmenu-h li:hover li:hover li a:hover,

ul#navmenu-h li:hover li:hover li:hover a,

ul#navmenu-h li.iehover li.iehover li a:hover,

ul#navmenu-h li.iehover li.iehover li.iehover a {

  background: #CCC;

  color: #FFF;

}

/* 4th Menu */

ul#navmenu-h li:hover li:hover li:hover li a,

ul#navmenu-h li.iehover li.iehover li.iehover li a {

  background: #EEE;

  color: #666;

}

/* 4th Menu Hover */

ul#navmenu-h li:hover li:hover li:hover li a:hover,

ul#navmenu-h li.iehover li.iehover li.iehover li a:hover {

  background: #CCC;

  color: #FFF;

}

ul#navmenu-h ul ul,

ul#navmenu-h ul ul ul {

  display: none;

  position: absolute;

  top: 0;

  left: 160px;

}

/* Do Not Move - Must Come Before display:block for Gecko */

ul#navmenu-h li:hover ul ul,

ul#navmenu-h li:hover ul ul ul,

ul#navmenu-h li.iehover ul ul,

ul#navmenu-h li.iehover ul ul ul {

  display: none;

}

ul#navmenu-h li:hover ul,

ul#navmenu-h ul li:hover ul,

ul#navmenu-h ul ul li:hover ul,

ul#navmenu-h li.iehover ul,

ul#navmenu-h ul li.iehover ul,

ul#navmenu-h ul ul li.iehover ul {

  display: block;

}

</style><script language="javascript">

navHover = function() {

    var lis = document.getElementById("navmenu-h").getElementsByTagName("LI");

    for (var i=0; i<lis.length; i++) {

        lis[i].onmouseover=function() {

            this.className+=" iehover";

        }

        lis[i].onmouseout=function() {

            this.className=this.className.replace(new RegExp(" iehover\\b"),

"");

        }

    }

}

if (window.attachEvent) window.attachEvent("onload", navHover);

        </script>

    </HEAD>

   <body>

   <ul id="navmenu-h">

   <li><a href="#">Root nav item1</a>

   <ul>

   <li><a href="#">Sub nav item1</a></li>

<li><a href="#">Sub nav item1-2</a></li>

   </ul>

   </li>

<li><a href="#">Root nav item2</a>

   <ul>

   <li><a href="#">Sub nav item2</a></li>

<li><a href="#">Sub nav item2-2</a></li>

   </ul>

   </li>

<li><a href="#">Root nav item3</a>

   <ul>

   <li><a href="#">Sub nav item3</a></li>

<li><a href="#">Sub nav item3-2</a></li>

   </ul>

   </li>

   </ul>

</body>

</html>
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标签:  js css 下拉菜单