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本文實例講述了純CSS完成酷黑作風三級下拉菜單後果代碼。分享給年夜家供年夜家參考。詳細以下：
這是一款純CSS酷黑作風三級下拉菜單代碼，黑色作風，可支撐三級，鼠標移上後顯示二級菜單。
運轉後果以下圖所示：
在線演示地址以下：
http://demo.jb51.net/js/2015/css-black-style-3level-down-show-menu-codes/
詳細代碼以下：
<!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>CSS款式三級下拉菜單</title>
<style>
@charset "utf-8";
body{margin:0px; padding:0px; font-family:Verdana, Geneva, sans-serif; font-size:12px; color:#FFF; background:url(images/tittlePicture.png) no-repeat;}
body a{color:#FFF;}
.box{margin:240px auto; padding:0px; width:1000px;}
.box ul{margin:0px; padding:0px; list-style:none;}
.box ul li{margin:0px 2px 0px 0px; padding:0px; width:120px; height:35px; display:inline; float:left; background:url(images/zk.png) no-repeat 0 0; border-radius:4px; box-shadow:#000 0px 0px 1px;}
.box ul li:hover ul{display:block;}
.box ul li a{text-align:center; width:121px; height:37px; line-height:35px; display:block; text-decoration:none;}
.box ul li ul{display:none;}
.box ul li ul li{margin:0px 0px 2px 0px; padding:0px; background:url(images/zkTwo.png) no-repeat;}
.box ul li ul li:hover{background:#666;}
.box ul li ul li:hover ul{visibility:visible;}
.box ul li ul li ul{visibility:hidden; position:relative; top:-37px; left:121px;}
.box ul li ul li ul li{background:#000;}
</style>
</head>
<body>
<div class="box">
<ul>
<li><a href="#"></a>
<ul>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">技巧文章</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">劇本下載</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="#">告白接洽</a>
<ul>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="#">最新更新</a>
<ul>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="#">源代碼下載</a>
<ul>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="#">編程技能</a>
<ul>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="/dll">編程控件</a>
<ul>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">電子書本</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="#">網頁殊效</a>
<ul>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
<li><a href="#">Two-level menu</a>
<ul>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
<li><a href="#">Three-level menu</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
</body>
</html>
願望本文所述對年夜家的div+css法式設計有所贊助。
