全兼容的纯CSS级联导航菜单源码

来源：互联网发布：炉石传说官方网站mac 编辑：程序博客网时间：2024/05/21 14:56

参与测试的浏览器：IE6 / IE7 / IE8 / FF3 / OP9.6 / SF3 / Chrome2
操作系统：Windows
蓝色理想经典论坛首发，转载请注明出处

这次给项目做的级联菜单使用了纯CSS的方式，能用CSS做的，就用CSS完成吧。

早已有前辈完成过这样的实例了，我以为我能顺利完成，但没想到处处碰壁，故记录一点心得如下，供大家参阅。除了IE6这个坚强的孩子，其他浏览器攻克还是比较容易的。

<!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" /><meta name="author" content="Chomo" /><link rel="start" href="http://www.14px.com" mce_href="http://www.14px.com" title="Home" /><title>三级级联菜单</title><mce:style type="text/css"></mce:style><style type="text/css" mce_bogus="1">* { margin:0; padding:0; list-style:none;}.c_subNav { width:150px; }.c_subNav a { text-decoration:none; color:#333;}.c_subNav a:hover { color:#f60;}.c_subNav ul ul { position:absolute; display:none; right:-150px; top:-1px;}.c_subNav li { border-bottom:1px solid #ccc; position:relative; _position:static; float:left; width:100%;}.c_subNav a.li { position:relative;}.c_subNav li .option { display:block; line-height:15px; padding:5px 5px 5px 25px; background:no-repeat 5px 4px; cursor:pointer; font:12px Verdana; zoom:1; background:url(http://www.14px.com/wp-content/uploads/2009/05/ico.gif) no-repeat;}.c_subNav li .option:hover { color:#f60; background-color:#ffa;}.c_subNav li .option span { display:block; padding-right:15px; background:url(http://www.14px.com/wp-content/uploads/2009/05/ico.gif) no-repeat right 0;}.c_subNav li .option:hover span { background-position:right -15px;}.c_subNav .li:hover { z-index:2; background:transparent;}.c_subNav .li:hover ul { display:block;}.c_subNav .li:hover ul ul { display:none;}.c_subNav .li:hover ul { border:1px solid #ccc; border-width:1px 2px 2px 1px; width:150px; background:#fff; padding:1px;}.c_subNav .li:hover li { border-bottom:none;}.c_subNav .li:hover li .option { padding:2px 5px; background:transparent;}.c_subNav .li:hover li .option:hover { background:#0096ff; color:#fff;}.c_subNav .li:hover li .option:hover span { background-position:right -30px;}.c_subNav .li:hover .li:hover ul { display:block; left:145px; top:-2px;}.c_subNav .charges .option { background-position:4px -45px;}.c_subNav .biz .option { background-position:4px -70px;}.c_subNav .change .option { background-position:4px -95px;}.c_subNav .score .option { background-position:4px -120px;}.c_subNav .server .option { background-position:4px -145px;}.c_subNav .edit .option { background-position:4px -170px;}.c_subNav .sms .option { background-position:4px -195px;}</style></head><body><div class="c_subNav"> <ul> <li class="li charges"> <a href="#nogo" mce_href="#nogo" class="option"><span>话费服务</span></a> <ul> <li class="li"> <a href="#nogo" mce_href="#nogo" class="option"><span>话费查询</span></a> <ul> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">实时话费查询</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">话费余额查询</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">月账单查询</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">月详单查询</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">缴费历史查询</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">资费优选推荐</a></li> </ul> </li> <li class="li"> <a href="#nogo" mce_href="#nogo" class="option"><span>定制话费信息</span></a> <ul> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">定制短信账单</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">话费余额短信提醒</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">定制Email账单</a></li> </ul> </li> <li class="li"> <a href="#nogo" mce_href="#nogo" class="option"><span>网上交费</span></a> <ul> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">网上缴费</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">充值卡缴费</a></li> </ul> </li> </ul> </li> <li class="li biz"> <a href="#nogo" mce_href="#nogo" class="option"><span>业务办理</span></a> <ul> <li class="li"> <a href="#nogo" mce_href="#nogo" class="option"><span>日常业务办理</span></a> <ul> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">来电显示</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">呼叫等待</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">呼叫转移</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">三方通话</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">来电提醒</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">呼叫保持</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">呼叫转移设置</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">主叫隐藏</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">彩铃</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">国内漫游</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">短信回执</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">12580综合信息</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">关爱一线通</a></li> </ul> </li> <li class="li"> <a href="#nogo" mce_href="#nogo" class="option"><span>数据业务</span></a> <ul> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">手机上网</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">GPRS</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">飞信</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">手机报</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">无线音乐俱乐部</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">手机邮箱</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">号簿管家</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">WLAN业务</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">彩乐短信</a></li> </ul> </li> <li class="li"> <a href="#nogo" mce_href="#nogo" class="option"><span>手机报停/报开</span></a> <ul> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">手机报停</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">手机复机</a></li> </ul> </li> <li class="li"> <a href="#nogo" mce_href="#nogo" class="option">梦网查询与退订</a> </li> </ul> </li> <li class="li change"> <a href="#nogo" mce_href="#nogo" class="option"><span>套餐办理与变更</span></a> <ul> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">GPRS套餐变更</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">产品变更</a></li> </ul> </li> <li class="li score"> <a href="#nogo" mce_href="#nogo" class="option"><span>积分计划</span></a> <ul> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">积分查询</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">积分兑换</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">积分明细查询</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">积分兑换话费</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">积分兑换历史查询</a></li> </ul> </li> <li class="li server"> <a href="#nogo" mce_href="#nogo" class="option"><span>在线客服</span></a> <ul> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">号码归属地查询</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">营业厅查询</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">手机仿真</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">在线咨询</a></li> </ul> </li> <li class="li edit"> <a href="#nogo" mce_href="#nogo" class="option"><span>个人信息管理</span></a> <ul> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">个人资料修改</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">服务密码变更</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">服务密码重置</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">PUK码查询</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">套餐使用状态查询</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">业务开通状态查询</a></li> </ul> </li> <li class="li sms"> <a href="#nogo" mce_href="#nogo" class="option">短信息服务</a> </li> </ul></div></body></html>

该实例完成大概就两个要点：

忌浮忌躁，一步步来，先把最低级的display:none;做。
“:hover伪类”的使用，默认状态“display:none;”，“:hover”时则“display:block;”则能很容易完成。

而IE6下折腾就比较复杂了，经过头破血流的教训之后，总结出关键四点：

1. 原理：IE6仅<a>标签支持:hover伪类，但如果a标签里面再嵌入a标签，里面的a标签将不会生效，所以必须在之间套加一层<table>；

<!–[if IE 6]><a href="#nogo" mce_href="#nogo"><table><tr><td><![endif]–> 内容部分可以含有<a>标签 <!–[if IE 6]></td></tr></table></a><![endif]–>

2. 关键样式名：这个用于:hover效果的a标签的命名，如果使用与<li>一致的样式名（在非IE6中是li:hover产生的效果），将不用再另写样式代码，不仅节省了代码开销，而且可维性更好；（这个是省时省力的关键）

<li class="li"> <!–[if IE 6]><a class="li" href="#nogo" mce_href="#nogo"><table><tr><td><![endif]–> 内容部分可以含有<a>标签 <!–[if IE 6]></td></tr></table></a><![endif]–> </li>

3. visibility的使用：采用display的话将出现onmouseout时上一次显示的optionGroup仍然不消失的情况

.c_subNav .li:hover ul { visibility:visible;}

4.table的设置： [含泪ing]table一定要记得width:100%;啊，一定要记得啊，一定要记得啊，一定要记得啊。

最后完成效果：代码

<!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" /><meta name="author" content="Chomo" /><link rel="start" href="http://www.14px.com" mce_href="http://www.14px.com" title="Home" /><title>三级级联菜单</title><mce:style type="text/css"></mce:style><style type="text/css" mce_bogus="1">* { margin:0; padding:0; list-style:none;}.c_subNav { width:150px; }.c_subNav table { width:100%; border-collapse:collapse;}.c_subNav a { text-decoration:none; color:#333;}.c_subNav a:hover { color:#f60;}.c_subNav ul ul { position:absolute; visibility:hidden; right:-150px; top:-1px;}.c_subNav li { border-bottom:1px solid #ccc; position:relative; _position:static; float:left; width:100%;}.c_subNav a.li { position:relative;}.c_subNav li .option { display:block; line-height:15px; padding:5px 5px 5px 25px; background:no-repeat 5px 4px; cursor:pointer; font:12px Verdana; zoom:1; background:url(img/ico.gif) no-repeat;}.c_subNav li .option:hover { color:#f60; background-color:#ffa;}.c_subNav li .option span { display:block; padding-right:15px; background:url(img/ico.gif) no-repeat right 0;}.c_subNav li .option:hover span { background-position:right -15px;}.c_subNav .li:hover { z-index:2; background:transparent;}.c_subNav .li:hover ul { visibility:visible;}.c_subNav .li:hover ul ul { visibility:hidden;}.c_subNav .li:hover ul { border:1px solid #ccc; border-width:1px 2px 2px 1px; width:150px; background:#fff; padding:1px;}.c_subNav .li:hover li { border-bottom:none;}.c_subNav .li:hover li .option { padding:2px 5px; background:transparent;}.c_subNav .li:hover li .option:hover { background:#0096ff; color:#fff;}.c_subNav .li:hover li .option:hover span { background-position:right -30px;}.c_subNav .li:hover .li:hover ul { visibility:visible; left:145px; top:-2px;}/*---图标差异---*/.c_subNav .charges .option { background-position:4px -45px;}.c_subNav .biz .option { background-position:4px -70px;}.c_subNav .change .option { background-position:4px -95px;}.c_subNav .score .option { background-position:4px -120px;}.c_subNav .server .option { background-position:4px -145px;}.c_subNav .edit .option { background-position:4px -170px;}.c_subNav .sms .option { background-position:4px -195px;}</style></head><body><div class="c_subNav"> <ul> <li class="li charges">  <a href="#nogo" mce_href="#nogo" class="option"><span>话费服务</span></a> <ul> <li class="li">  <a href="#nogo" mce_href="#nogo" class="option"><span>话费查询</span></a> <ul> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">实时话费查询</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">话费余额查询</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">月账单查询</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">月详单查询</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">缴费历史查询</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">资费优选推荐</a></li> </ul>  </li> <li class="li">  <a href="#nogo" mce_href="#nogo" class="option"><span>定制话费信息</span></a> <ul> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">定制短信账单</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">话费余额短信提醒</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">定制Email账单</a></li> </ul>  </li> <li class="li">  <a href="#nogo" mce_href="#nogo" class="option"><span>网上交费</span></a> <ul> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">网上缴费</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">充值卡缴费</a></li> </ul>  </li> </ul>  </li> <li class="li biz">  <a href="#nogo" mce_href="#nogo" class="option"><span>业务办理</span></a> <ul> <li class="li">  <a href="#nogo" mce_href="#nogo" class="option"><span>日常业务办理</span></a> <ul> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">来电显示</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">呼叫等待</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">呼叫转移</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">三方通话</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">来电提醒</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">呼叫保持</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">呼叫转移设置</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">主叫隐藏</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">彩铃</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">国内漫游</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">短信回执</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">12580综合信息</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">关爱一线通</a></li> </ul>  </li> <li class="li">  <a href="#nogo" mce_href="#nogo" class="option"><span>数据业务</span></a> <ul> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">手机上网</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">GPRS</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">飞信</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">手机报</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">无线音乐俱乐部</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">手机邮箱</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">号簿管家</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">WLAN业务</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">彩乐短信</a></li> </ul>  </li> <li class="li">  <a href="#nogo" mce_href="#nogo" class="option"><span>手机报停/报开</span></a> <ul> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">手机报停</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">手机复机</a></li> </ul>  </li> <li class="li"> <a href="#nogo" mce_href="#nogo" class="option">梦网查询与退订</a> </li> </ul>  </li> <li class="li change">  <a href="#nogo" mce_href="#nogo" class="option"><span>套餐办理与变更</span></a> <ul> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">GPRS套餐变更</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">产品变更</a></li> </ul>  </li> <li class="li score">  <a href="#nogo" mce_href="#nogo" class="option"><span>积分计划</span></a> <ul> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">积分查询</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">积分兑换</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">积分明细查询</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">积分兑换话费</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">积分兑换历史查询</a></li> </ul>  </li> <li class="li server">  <a href="#nogo" mce_href="#nogo" class="option"><span>在线客服</span></a> <ul> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">号码归属地查询</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">营业厅查询</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">手机仿真</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">在线咨询</a></li> </ul>  </li> <li class="li edit">  <a href="#nogo" mce_href="#nogo" class="option"><span>个人信息管理</span></a> <ul> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">个人资料修改</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">服务密码变更</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">服务密码重置</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">PUK码查询</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">套餐使用状态查询</a></li> <li class="li"><a href="#nogo" mce_href="#nogo" class="option">业务开通状态查询</a></li> </ul>  </li> <li class="li sms"> <a href="#nogo" mce_href="#nogo" class="option">短信息服务</a> </li> </ul></div></body></html>

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