漂亮的透明css菜单下拉效果

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>漂亮的透明css菜单</title>
<style type="text/css">
#wrapper {width:750px; margin:0 auto;}
#background {width:750px; height:440px; background:url(http://www.stunicholls.myby.co.uk/pro_drop12/model3.jpg); padding-top:10px;}
#menu2 {padding:0; width:750px; margin:0; list-style:none; height:28px; position:relative; z-index:500; font-family:arial, verdana, sans-serif; background:#000; border-bottom:1px solid #edb;}
#menu2 li.top {display:block; float:left;}
#menu2 li a.top_link {display:block; height:25px; float:left; line-height:22px; font-size:11px; font-weight:bold; padding:0 20px 0 10px; color:#edb; text-decoration:none; border-top:3px solid #000;}
#menu2 li a.top_link:hover {color:#d85; border-color:#a52;}
#menu2 li:hover > a.top_link {color:#d85; border-color:#a52;}
#menu2 table {border-collapse:collapse; width:0; height:0; position:absolute; top:0; left:0;}
/* Default link styling */
/* Style the list OR link hover. Depends on which browser is used */
#menu2 a:hover {visibility:visible; position:relative; z-index:200;}
#menu2 li:hover {position:relative; z-index:200;}
/* keep the 'next' level invisible by placing it off screen. */
#menu2 ul,
#menu2 :hover ul ul,
#menu2 :hover ul :hover ul ul,
#menu2 :hover ul :hover ul :hover ul ul,
#menu2 :hover ul :hover ul :hover ul :hover ul ul {position:absolute; left:-9999px; top:-9999px; height:0; margin:0; padding:0; list-style:none;}
#menu2 :hover ul.sub {left:0; top:25px; white-space:nowrap; width:120px; height:auto; z-index:300; padding-top:5px; background:url(http://www.stunicholls.myby.co.uk/pro_drop12/trans.gif);}
#menu2 :hover ul.sub li {display:block; float:left; width:100%; height:25px;}
#menu2 :hover ul.sub li span {display:block; height:25px; float:left; width:90px; font-weight:normal;}
#menu2 :hover ul.sub li label{display:block; height:25px; float:left; width:30px; font-weight:normal;}
#menu2 :hover ul.sub li a {display:block; position:relative; font-size:11px; height:25px; width:120px; margin-right:-30px; line-height:25px; text-indent:10px; color:#edb; text-decoration:none; background:url(http://www.stunicholls.myby.co.uk/pro_drop12/trans.gif);}
#menu2 :hover ul.sub li span a:hover {color:#f97;}
#menu2 :hover ul.sub li:hover > span a {color:#f97;}
#menu2 :hover ul :hover ul,
#menu2 :hover ul :hover ul :hover ul,
#menu2 :hover ul :hover ul :hover ul :hover ul,
#menu2 :hover ul :hover ul :hover ul :hover ul :hover ul
{left:120px; top:0; white-space:nowrap; width:120px; z-index:400; height:auto;}
#menu2 :hover ul.wide {width:150px;}
#menu2 :hover ul.wide li span {width:120px;}
#menu2 :hover ul.wide li a {width:150px;}
#menu2 :hover ul.narrow {width:90px;}
#menu2 :hover ul.narrow li span {width:60px;}
#menu2 :hover ul.narrow li a {width:90px;}
#menu2 :hover ul.narrow :hover ul,
#menu2 :hover ul :hover ul.narrow :hover ul,
#menu2 :hover ul :hover ul :hover ul.narrow :hover ul,
#menu2 :hover ul :hover ul :hover ul :hover ul.narrow :hover ul
{left:90px;}
#menu2 li > span {
background: url(http://www.stunicholls.myby.co.uk/pro_drop12/tab-midleft.png);
}
#menu2 li >label{
background: url(http://www.stunicholls.myby.co.uk/pro_drop12/tab-midright.png)
}
#menu2 li.fly >label{
background: url(http://www.stunicholls.myby.co.uk/pro_drop12/tab-midright-sub.png)
}
#menu2 li.subtop > span,
#menu2 li.flytop > span {
background:url(http://www.stunicholls.myby.co.uk/pro_drop12/tab-topleft.png);
}
#menu2 li.subtop >label{
background:url(http://www.stunicholls.myby.co.uk/pro_drop12/tab-topright.png);
}
#menu2 li.flytop >label{
background:url(http://www.stunicholls.myby.co.uk/pro_drop12/tab-topright-sub.png);
}
#menu2 li.subbot > span,
#menu2 li.flybot > span {
height:35px !important; background:url(http://www.stunicholls.myby.co.uk/pro_drop12/tab-botleft.png);
}
#menu2 li.subbot >label{
height:35px !important; background:url(http://www.stunicholls.myby.co.uk/pro_drop12/tab-botright.png);
}
#menu2 li.flybot >label{
height:35px !important; background:url(http://www.stunicholls.myby.co.uk/pro_drop12/tab-botright-sub.png);
}
</style>

</head>
<body>
<h2>3D menu series</h2>
<ul id="menu2">
<li class="top"><a href="http://www.cnblogs.com/joe235/" class="top_link">Home</a></li>
<li class="top"><a href="http://www.cnblogs.com/joe235/" class="top_link">Contacts</a>
  
  <ul class="sub">
   <li class="subtop"><span><a href="http://www.cnblogs.com/joe235/">Support</a></span><label></label></li>
   <li class="fly"><span><a href="http://www.cnblogs.com/joe235/">Sales</a></span><label></label>
    
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     <li class="subtop"><span><a href="http://www.cnblogs.com/joe235/">USA</a></span><label></label></li>
     <li><span><a href="http://www.cnblogs.com/joe235/">Canadian</a></span><label></label></li>
     <li><span><a href="http://www.cnblogs.com/joe235/">South American</a></span><label></label></li>
     <li class="fly"><span><a href="http://www.cnblogs.com/joe235/">European</a></span><label></label>
      
      <ul class="narrow">
       <li class="flytop"><span><a href="http://www.cnblogs.com/joe235/">British</a></span><label></label>
        
        <ul class="narrow">
         <li class="subtop"><span><a href="http://www.cnblogs.com/joe235/">London</a></span><label></label></li>
         <li><span><a href="http://www.cnblogs.com/joe235/">Liverpool</a></span><label></label></li>
         <li><span><a href="http://www.cnblogs.com/joe235/">Glasgow</a></span><label></label></li>
         <li class="fly"><span><a href="http://www.cnblogs.com/joe235/">Bristol</a></span><label></label>
          
          <ul class="narrow">
           <li class="subtop"><span><a href="http://www.cnblogs.com/joe235/">Redland</a></span><label></label></li>
           <li><span><a href="http://www.cnblogs.com/joe235/">Hanham</a></span><label></label></li>
           <li class="subbot"><span><a href="http://www.cnblogs.com/joe235/">Eastville</a></span><label></label></li>
          </ul>
          
         </li>
         <li><span><a href="http://www.cnblogs.com/joe235/">Cardiff</a></span><label></label></li>
         <li class="subbot"><span><a href="http://www.cnblogs.com/joe235/">Belfast</a></span><label></label></li>
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       </li>
       <li><span><a href="http://www.cnblogs.com/joe235/">French</a></span><label></label></li>
       <li><span><a href="http://www.cnblogs.com/joe235/">German</a></span><label></label></li>
       <li class="subbot"><span><a href="http://www.cnblogs.com/joe235/">Spanish</a></span><label></label></li>
      </ul>
      
     </li>
     <li><span><a href="http://www.cnblogs.com/joe235/">Australian</a></span><label></label></li>
     <li class="subbot"><span><a href="http://www.cnblogs.com/joe235/">Asian</a></span><label></label></li>
    </ul>
    
   </li>
   <li><span><a href="http://www.cnblogs.com/joe235/">Buying</a></span><label></label></li>
   <li><span><a href="http://www.cnblogs.com/joe235/">Photographers</a></span><label></label></li>
   <li><span><a href="http://www.cnblogs.com/joe235/">Stockist</a></span><label></label></li>
   <li class="subbot"><span><a href="http://www.cnblogs.com/joe235/">General</a></span><label></label></li>
  </ul>
  
</li>
<li class="top"><a href="http://www.cnblogs.com/joe235/" class="top_link">Services</a>
  
  <ul class="sub">
   <li class="subtop"><span><a href="http://www.cnblogs.com/joe235/">Printing</a></span><label></label></li>
   <li><span><a href="http://www.cnblogs.com/joe235/">Photo Framing</a></span><label></label></li>
   <li><span><a href="http://www.cnblogs.com/joe235/">Retouching</a></span><label></label></li>
   <li class="subbot"><span><a href="http://www.cnblogs.com/joe235/">Archiving</a></span><label></label></li>
  </ul>
  
</li>
<li class="top"><a href="http://www.cnblogs.com/joe235/" class="top_link">Products</a>
  
  <ul class="sub">
   <li class="flytop"><span><a href="http://www.cnblogs.com/joe235/">Cameras</a></span><label></label>
     
     <ul class="narrow">
      <li class="subtop"><span><a href="http://www.cnblogs.com/joe235/">Nikon</a></span><label></label></li>
      <li><span><a href="http://www.cnblogs.com/joe235/">Minolta</a></span><label></label></li>
      <li class="subbot"><span><a href="http://www.cnblogs.com/joe235/">Pentax</a></span><label></label></li>
     </ul>
     
   </li>
   <li class="fly"><span><a href="http://www.cnblogs.com/joe235/">Lenses</a></span><label></label>
     
     <ul>
      <li class="subtop"><span><a href="http://www.cnblogs.com/joe235/">Wide Angle</a></span><label></label></li>
      <li><span><a href="http://www.cnblogs.com/joe235/">Standard</a></span><label></label></li>
      <li><span><a href="http://www.cnblogs.com/joe235/">Telephoto</a></span><label></label></li>
      <li class="fly"><span><a href="http://www.cnblogs.com/joe235/">Zoom</a></span><label></label>
       
       <ul>
        <li class="subtop"><span><a href="http://www.cnblogs.com/joe235/">35mm to 125mm</a></span><label></label></li>
        <li><span><a href="http://www.cnblogs.com/joe235/">50mm to 250mm</a></span><label></label></li>
        <li class="subbot"><span><a href="http://www.cnblogs.com/joe235/">125mm to 500mm</a></span><label></label></li>
       </ul>
       
      </li>
      <li><span><a href="../boxes/">Mirror</a></span><label></label></li>
      <li class="flybot"><span><a href="http://www.cnblogs.com/joe235/">Non standard</a></span><label></label>
       
       <ul>
        <li class="subtop"><span><a href="http://www.cnblogs.com/joe235/">Bayonet mount</a></span><label></label></li>
        <li class="subbot"><span><a href="http://www.cnblogs.com/joe235/">Screw mount</a></span><label></label></li>
       </ul>
       
      </li>
     </ul>
     
   </li>
   <li><span><a href="http://www.cnblogs.com/joe235/">Flash Guns</a></span><label></label></li>
   <li><span><a href="http://www.cnblogs.com/joe235/">Tripods</a></span><label></label></li>
   <li class="subbot"><span><a href="http://www.cnblogs.com/joe235/">Filters</a></span><label></label></li>
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<li class="top"><a href="http://www.cnblogs.com/joe235/" class="top_link">Where to find us</a>
  
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   <li class="subtop"><span><a href="http://www.cnblogs.com/joe235/">Travelling by car or rail</a></span><label></label></li>
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   <li class="subbot"><span><a href="http://www.cnblogs.com/joe235/">Our place on the map</a></span><label></label></li>
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   <li class="subtop"><span><a href="http://www.cnblogs.com/joe235/">Online</a></span><label></label></li>
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<img src="http://www.stunicholls.myby.co.uk/pro_drop12/model3.jpg" alt="model" title="model" />
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漂亮的透明css菜单 下拉效果

漂亮的透明css菜单下拉效果