我隐藏后出不来了，而且我的div是写在li标签里的，谁能帮我看看呀
<!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>京东-导航栏</title>
<style type="text/css">
.navigation
{
width: 220px;
height:506px;
display: block;
padding:0;
margin:30px;
background:#C81623;
}
.allgoods
{
height: 40px;
line-height: 40px;
text-align: left;
font:15px;
font-weight:bold;
font-family:微软雅黑;
color:white;
background:#B1191A;
padding-left:20px;
}
.navigation li
{
list-style-type:none;
font-size:14px;
font-family:微软雅黑;
height:31px;
line-height:31px;
background:url(../images/%E5%B0%8F%E7%AE%AD%E5%A4%B4.png) no-repeat right;
z-index:3;
}
.navigation li:hover
{
background-image:none;
background-color:#F7F7F7;
border-left:1px solid #C81623;
border-bottom:1px solid #C81623;
}
.navigation li:hover a
{
color:#C81623;
}
.navigation li a
{
color:white;
text-decoration:none;
padding-left:20px;
}
.navigation li a:hover
{
color:#C81623;
}
.navigation li:hover span
{
position:relative;
background:#F7F7F7;
width:20px;
height:31px;
display:inline-block;
float:right;
z-index:5;
}
.submenu1
{
left:257px;
top:69px;
width:1000px;
height:465px;
border:1px solid #C81623;
background:#F7F7F7;
z-index:4;
position:absolute;
display:none;
}
.nevigation li:hover .submenu1
{
display:block;
}
.leftside1 ul li
{
display:inline;
background:#7C7171;
font-size:12px;
font-family:宋体;
height:20px;
line-height:20px;
width:50px;
}
</head>
<body>
<ul div class="navigation">
<div class="allgoods">全部商品分类</div>
<li>
<a href="http://channel.jd.com/electronic.html">家用电器</a><span></span>
<div class="submenu1">
<div class="leftside1">
<ul>
<li><a href="#">品牌日</a></li>
<li><a href="#">家电城</a></li>
<li><a href="#">智能生活馆</a></li>
<li><a href="#">京东净化馆</a></li>
<li><a href="#">京东帮服务店</a></li>
<li><a href="#">值得买精选</a></li>
</ul>
</div>
<div class="rightside1"></div>
</div>
</li>
<li><a href="http://shouji.jd.com/#">手机、数码、京东通信</a></li>
<li><a href="http://diannao.jd.com/">电脑、办公</a></li>
<li><a href="http://channel.jd.com/furniture.html">家居、家具、家装、厨具</a></li>
<li><a href="http://channel.jd.com/1315-1342.html">男装、女装、内衣、珠宝</a></li>
<li><a href="http://channel.jd.com/beauty.html">个护化妆</a></li>
<li><a href="http://channel.jd.com/bag.html">鞋靴、箱包、钟表、奢侈品</a></li>
<li><a href="http://channel.jd.com/sports.html">运动户外</a></li>
<li><a href="http://channel.jd.com/auto.html">汽车、汽车用品</a></li>
<li><a href="http://channel.jd.com/toys.html">母婴、玩具乐器</a></li>
<li><a href="http://channel.jd.com/freshfood.html">食品、酒类、生鲜、特产</a></li>
<li><a href="http://channel.jd.com/health.html">营养保健</a></li>
<li><a href="http://mvd.jd.com/">图书、音像、电子书</a></li>
<li><a href="http://chongzhi.jd.com/">彩票、旅行、充值、票务</a></li>
<li><a href="http://z.jd.com/">理财、众筹、白条、保险</a></li>
</ul>
</body>
</html>
