div+css竖二级菜单，展开减号，不展开加号的代码

我想要展开时是减号，不展开时是加号的代码，代码加在哪儿，麻烦了·... 我想要展开时是减号，不展开时是加号的代码，代码加在哪儿，麻烦了· 展开
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#热议# 生活中有哪些实用的心理学知识？
shine戚七七
2015-12-29 · TA获得超过4.7万个赞
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<!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>无标题文档</title>
<style type="text/css">
ul{margin:0;padding:0;list-style-type:none;}
a{ text-decoration:none;}
.mold_open_hover,.mold_open{background-image:url(../image/open.png);background-repeat:none;display:inline-block;width:10px;height:6px;margin-left:10px;position:relative;top:-2px;}
.mold_open{background-position:0 -6px;}
.mold_open_hover{background-position:0 0;}
.mod-menu{position:relative;z-index:1000;left:-1px;margin-left:100px;}
h1{margin-left:100px;}
.menu-cont-list a:hover{text-decoration:underline;}
.mod-menu .menu-item{width:220px;border-top:solid 1px #d59bb2;border-bottom:solid 2px #d59bb2;position:relative;z-index:22;}
.mod-menu .menu-item li{height:47px;line-height:47px;background:#feebf3;border-top:solid 1px #f0bfd3;}
.mod-menu .menu-item li.mouse-bg{background:url(../image/mouse-menu-bg.jpg) no-repeat #fff;position:relative;z-index:22;margin-right:-4px;}
.mod-menu .menu-item a{color:#c81d61;font-size:16px;padding-left:33px;display:block;height:45px;border-top:solid 1px #f1f2f7;}
.mod-menu .menu-item a:hover{ text-decoration:none;}
.mod-menu .menu-cont{position:absolute;left:220px;top:1px;background:#fff;width:573px;border:solid 1px #F0BFD3;box-shadow:2px 0 10px rgba(210,33,103,0.25);z-index:20;}
.mod-menu .menu-cont-list{padding:0 30px;}
.mod-menu .menu-cont-list li{border-bottom:dotted 1px #f0bfd3;padding:10px 0;}
.mod-menu .menu-cont-list li:last-child{border-bottom:none;}
.mod-menu .menu-cont-list h3{font-size:14px;font-weight:700;}
.mod-menu .menu-cont-list h3 a{color:#222;}
.mod-menu .menu-list-link a{color:#666;line-height:24px;}
.mod-menu .menu-list-link .long-string{color:#ccc;font-size:12px;padding:0 10px;}
</style>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function(){
var mod_menu=$(".mod-menu");//导航模块区
var menu=function(){
var menuItem=$(".menu-item li");//选择导航列表
menuItem.each(function(){
var _index=$(this).index();//获取当前选择菜单列表的索引
$(this).mouseenter(function(){
var y = $(this).position().top+1;//获取当前鼠标滑过的列表的顶部坐标
$(".menu-cont").show();
$(".menu-cont").css("top",y);//需要显示的对应索引内容
$(this).addClass("mouse-bg").siblings().removeClass("mouse-bg");
$(".menu-cont>div").eq(_index).show().siblings().hide();
});
});/*导航菜单菜单*/
$(".mod-menu").mouseleave(function(){
$(".menu-cont").hide();
menuItem.removeClass("mouse-bg");
})
}//展开二级菜单
menu();//执行展开二级菜单函
});
</script>
</head>
<body>
<h1>简单的2级菜单导航</h1>
<div class="mod-menu f-l">
<div id="column-left">
<ul class="menu-item">
<li class=""><a href="trade-wedding.html">Wedding</a></li>
<li class=""><a href="trade-occasion-dresses.html">Occasion Dresses</a></li>
<li class=""><a href="trade-women-s-clothing.html">Women's Clothing</a></li>
<li class=""><a href="trade-women-s-shoes.html">Women's Shoes</a></li>
<li class=""><a href="trade-accessories.html">Accessories</a></li>
<li class=""><a href="trade-beauty-health.html">Beauty & Health</a></li>
</ul><!--一级菜单列表-->
<div class="menu-cont hide" style="display: none; top: 241px;">
<div class="menu-cont-list" style="display: none;">
<ul>
<li>
<h3><a href="wedding-dresses-c1_2.html">Wedding Dresses</a></h3>
<div class="menu-list-link"></div>
</li>
<li>
<h3><a href="bridesmaid-dresses-c1_3.html">Bridesmaid Dresses</a></h3>
<div class="menu-list-link"></div>
</li>
<li>
<h3><a href="wedding-party-dresses-c1_4.html">Wedding Party Dresses</a></h3>
<div class="menu-list-link">
<a title="" href="mother-of-the-brides-dresses-c1_4_36.html">Mother of the Brides Dresses</a>
<span class="long-string">|</span>
<a title="" href="flower-girl-dresses-c1_4_37.html">Flower Girl Dresses</a>
<span class="long-string">|</span>
<a title="" href="wedding-guest-dresses-c1_4_38.html">Wedding Guest Dresses</a>
</div>
</li>
<li>
<h3><a href="wedding-accessories-c1_6.html">Wedding Accessories</a></h3>
<div class="menu-list-link">
<a title="" href="fabric-swatch-c1_6_100.html">Fabric Swatch</a>
<span class="long-string">|</span>
<a title="" href="bridal-lingerie-c1_6_101.html">Bridal Lingerie</a>
<span class="long-string">|</span>
<a title="" href="wedding-veils-c1_6_48.html">Wedding Veils</a>
<span class="long-string">|</span>
<a title="" href="wedding-gloves-c1_6_51.html">Wedding Gloves</a>
<span class="long-string">|</span>
<a title="" href="wedding-shawls-c1_6_47.html">Wedding Shawls</a>
<span class="long-string">|</span>
<a title="" href="wedding-flowers-c1_6_52.html">Wedding Flowers</a>
<span class="long-string">|</span>
<a title="" href="wedding-petticoats-c1_6_120.html">Wedding Petticoats</a>
</div>
</li>
</ul>
</div>
<div class="menu-cont-list" style="display: none;">
<ul>
<li>
<h3><a href="prom-dresses-c103_39.html">Prom Dresses</a></h3>
<div class="menu-list-link">
</div>
</li>
<li>
<h3><a href="military-ball-dresses-c103_118.html">Military Ball Dresses</a></h3>
<div class="menu-list-link">
</div>
</li>
<li>
<h3><a href="evening-dresses-c103_40.html">Evening Dresses</a></h3>
<div class="menu-list-link">
</div>
</li>
<li>
<h3><a href="cocktail-dresses-c103_41.html">Cocktail Dresses</a></h3>
<div class="menu-list-link">
</div>
</li>
<li>
<h3><a href="ball-gowns-c103_43.html">Ball Gowns</a></h3>
<div class="menu-list-link">
</div>
</li>
<li>
<h3><a href="homecoming-dresses-c103_44.html">Homecoming Dresses</a></h3>
<div class="menu-list-link">
</div>
</li>
<li>
<h3><a href="little-black-dresses-c103_45.html">Little Black Dresses </a></h3>
<div class="menu-list-link">
</div>
</li>
<li>
<h3><a href="quinceanera-dresses-c103_46.html">Quinceanera Dresses</a></h3>
<div class="menu-list-link">
</div>
</li>
</ul>
</div>
<div class="menu-cont-list" style="display: none;">
<ul>
<li>
<h3><a href="dresses-c7_8.html">Dresses</a></h3>
<div class="menu-list-link">
</div>
</li>
<li>
<h3><a href="clubwear-c7_9.html">Clubwear</a></h3>
<div class="menu-list-link">
</div>
</li>
<li>
<h3><a href="leggings-c7_12.html">Leggings</a></h3>
<div class="menu-list-link">
</div>
</li>
<li>
<h3><a href="lingeries-c7_13.html">Lingeries</a></h3>
<div class="menu-list-link">
<a title="" href="bras-c7_13_54.html">Bras</a>
<span class="long-string">|</span>
<a title="" href="babydolls-c7_13_56.html">Babydolls</a>
<span class="long-string">|</span>
<a title="" href="teddies-c7_13_57.html">Teddies</a>
<span class="long-string">|</span>
<a title="" href="panties-c7_13_58.html">Panties</a>
<span class="long-string">|</span>
<a title="" href="hosiery-c7_13_59.html">Hosiery</a>
</div>
</li>
<li>
<h3><a href="bustiers-corsets-c7_102.html">Bustiers & Corsets</a></h3>
<div class="menu-list-link">
</div>
</li>
<li>
<h3><a href="costumes-c7_53.html">Costumes</a></h3>
<div class="menu-list-link">
<a title="" href="sexy-costumes-c7_53_110.html">Sexy Costumes</a>
<span class="long-string">|</span>
<a title="" href="christmas-costumes-c7_53_119.html">Christmas Costumes</a>
<span class="long-string">|</span>
<a title="" href="halloween-costumes-c7_53_111.html">Halloween Costumes</a>
<span class="long-string">|</span>
<a title="" href="halloween-accessories-c7_53_112.html">Halloween Accessories</a>
<span class="long-string">|</span>
<a title="" href="zentai-c7_53_121.html">Zentai</a>
</div>
</li>
<li>
<h3><a href="swimwear-c7_11.html">Swimwear</a></h3>
<div class="menu-list-link">
</div>
</li>
<li>
<h3><a href="activewear-c7_10.html">Activewear</a></h3>
<div class="menu-list-link">
</div>
</li>
</ul>
</div>
<div class="menu-cont-list" style="display: none;">
<ul>
<li>
<h3><a href="heels-c116_60.html">Heels</a></h3>
<div class="menu-list-link">
</div>
</li>
<li>
<h3><a href="pumps-c116_117.html">Pumps</a></h3>
<div class="menu-list-link">
</div>
</li>
<li>
<h3><a href="dance-shoes-c116_62.html">Dance Shoes</a></h3>
<div class="menu-list-link">
</div>
</li>
<li>
<h3><a href="boots-c116_63.html">Boots</a></h3>
<div class="menu-list-link">
</div>
</li>
</ul>
</div>
<div class="menu-cont-list" style="display: none;">
<ul>
<li>
<h3><a href="evening-bags-c15_113.html">Evening Bags</a></h3>
<div class="menu-list-link">
</div>
</li>
<li>
<h3><a href="hats-scarves-c15_16.html">Hats & Scarves</a></h3>
<div class="menu-list-link">
<a title="" href="womens-hats-c15_16_64.html">Womens Hats</a>
<span class="long-string">|</span>
<a title="" href="womens-scarves-c15_16_65.html">Womens Scarves</a>
</div>
</li>
<li>
<h3><a href="jewelry-c15_17.html">Jewelry</a></h3>
<div class="menu-list-link">
<a title="" href="earrings-c15_17_66.html">Earrings</a>
<span class="long-string">|</span>
<a title="" href="necklaces-c15_17_67.html">Necklaces</a>
<span class="long-string">|</span>
<a title="" href="rings-c15_17_68.html">Rings</a>
</div>
</li>
<li>
<h3><a href="watches-c15_18.html">Watches</a></h3>
<div class="menu-list-link">
</div>
</li>
</ul>
</div>
<div class="menu-cont-list" style="display: block;">
<ul>
<li>
<h3><a href="wigs-hair-extensions-c19_23.html">Wigs & Hair extensions</a></h3>
<div class="menu-list-link">
</div>
</li>
<li>
<h3><a href="fascinators-c19_69.html">Fascinators</a></h3>
<div class="menu-list-link">
</div>
</li>
<li>
<h3><a href="makeup-tools-c19_21.html">Makeup Tools</a></h3>
<div class="menu-list-link">
</div>
</li>
<li>
<h3><a href="spas-massagers-c19_71.html">Spas & Massagers</a></h3>
<div class="menu-list-link">
</div>
</li>
<li>
<h3><a href="health-fitness-c19_70.html">Health & Fitness</a></h3>
<div class="menu-list-link">
</div>
</li>
</ul>
</div>
</div>
</div><!--二级菜单内容-->
</div>
</body>
</html>
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feqgat
2011-01-15 · TA获得超过1002个赞
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "">
<html xmlns="">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<script type=text/javascript><!--//--><![CDATA[//><!--
function menuFix() {
var sfEls = document.getElementById("menu").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>
<style type="text/css">
body
a
a:hover
#menu
#menu ul
#menu ul li
#menu ul li a
#menu ul li a:hover
#menu ul li a#current
#menu ul li ul
#menu ul li ul li
#menu ul li ul li a
#menu ul li ul li a:hover
#menu ul li:hover ul
#menu ul li.sfhover ul
</style>
</head>
<body>
<div id="menu">
<ul>
<li><a id="current" href="#">首页</a>
<ul>
<li><a href="#">下拉1</a></li>
<li><a href="#">下拉1</a></li>
</ul>
</li>
<li><a href="#">网页版式</a>
<ul>
<li><a href="#">下拉2</a></li>
<li><a href="#">下拉2</a></li>
</ul>
</li>
<li><a href="#">web教程</a>
<ul>
<li><a href="#">下拉3</a></li>
<li><a href="#">下拉3</a></li>
<li><a href="#">下拉3</a></li>
</ul>
</li>
<li><a href="#">web实例</a>
<ul>
<li><a href="#">下拉4</a></li>
<li><a href="#">下拉4</a></li>
<li><a href="#">下拉4</a></li>
</ul>
</li>
<li><a href="#">常用代码</a></li>
</ul>
</div>
</body>
</html>
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崔庚大队长
2011-01-14 · 超过19用户采纳过TA的回答
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那个要用javascript写
参考一下这个
http://blog.csdn.net/fironstone/archive/2004/07/14/41191.aspx
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纲昭do
2015-12-21 · 超过22用户采纳过TA的回答
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http://www.divcss5.com/template/m101.shtml
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素心珊瑚
2015-12-16 · TA获得超过1229个赞
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那个要用javascript写
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