分享一个不错的二级导航

操作简单直接在广告二级导航粘贴代码就可以 。
演示地址www.bandaow.com  
<style type="text/css">
#nav .nav_floor {margin-bottom:-8px;padding:5px 0px 6px 0px;font-size:14px;border:1px solid
#e8e8e8;border-top:none;background-position:0 -256px;overflow:hidden;background:url
(/static/image/common/bg_nav_repeat.gif) repeat-x 0 bottom; }
.nav_box {padding:0 0px 0 3px; overflow:hidden;}
.nav_box li {float:left;padding:0 2px 0 2px;margin-right:0px;width:115px;height:21px;line-
height:21px;background-position:right 0px;}
.nav_box li a {display:block;padding-left:0px;width:115px;height:21px;background-
position:7px 0px;overflow:hidden;}
.nav_box li a span {font-family:Verdana,Arial;font-size:12px;font-weight:700;}
#nav .nav_box li a:hover {background-color:#697f8f;color:#fff;text-
decoration:none;background-position:7px -86px;}
</style>
<DIV id=nav>
<DIV class=nav_floor>
<UL class=nav_box>
<li><a href="forum.php?mod=forumdisplay&fid=2" title="都市广场"><span>01#:</span>都市广场
</a></li>
<li><a href="forum.php?mod=forumdisplay&fid=40" title="青岛美食"><span>02#:</span>青岛美食
</a></li>
<li><a href="forum.php?mod=forumdisplay&fid=41" title="交友征婚"><span>03#:</span>交友征婚
</a></li>
<li><a href="forum.php?mod=forumdisplay&fid=43" title="社会杂谈"><span>04#:</span>社会杂谈
</a></li>
<li><a href="forum.php?mod=forumdisplay&fid=44" title="岛城拍客"><span>05#:</span>岛城拍客
</a></li>
<li><a href="forum.php?mod=forumdisplay&fid=42" title="爱心公益"><span>06#:</span>爱心公益
</a></li>
<li><a href="forum.php?mod=forumdisplay&fid=55" title="车友天地"><span>07#:</span>车友天地
</a></li>
<li><a href="forum.php?mod=forumdisplay&fid=53" title="情感婚嫁"><span>08#:</span>情感婚嫁
</a></li>
<li><a href="forum.php?mod=forumdisplay&fid=54" title="亲子乐园"><span>09#:</span>亲子乐园
</a></li>
<li><a href="forum.php?mod=forumdisplay&fid=56" title="家居装修"><span>10#:</span>家居装修
</a></li>
<li><a href="forum.php?mod=forumdisplay&fid=58" title="家有学童"><span>11#:</span>家有学童
</a></li>
<li><a href="forum.php?mod=forumdisplay&fid=57" title="房产在线"><span>12#:</span>房产在线
</a></li>
<li><a href="forum.php?mod=forumdisplay&fid=59" title="青岛拉呱"><span>13#:</span>青岛拉呱
</a></li>
<li><a href="forum.php?mod=forumdisplay&fid=62" title="原创文学"><span>14#:</span>原创文学
</a></li>
<li><a href="forum.php?mod=forumdisplay&fid=60" title="时尚消费"><span>15#:</span>时尚消费
</a></li>
<li><a href="forum.php?mod=forumdisplay&fid=61" title="体育健身"><span>16#:</span>体育健身
</a></li>
<li><a href="forum.php?mod=forumdisplay&fid=63" title="家电数码"><span>17#:</span>家电数码
</a></li>
<li><a href="forum.php?mod=forumdisplay&fid=64" title="宠物情缘"><span>18#:</span>宠物情缘
</a></li>
<li><a href="forum.php?mod=forumdisplay&fid=45" title="本地广告"><span>19#:</span>本地广告
</a></li>
<li><a href="forum.php?mod=forumdisplay&fid=46" title="求职招聘"><span>20#:</span>求职招聘
</a></li>
<li><a href="forum.php?mod=forumdisplay&fid=47" title="房屋租售"><span>21#:</span>房屋租售
</a></li>
<li><a href="forum.php?mod=forumdisplay&fid=48" title="教育培训"><span>22#:</span>教育培训
</a></li>
<li><a href="forum.php?mod=forumdisplay&fid=49" title="健康医疗"><span>23#:</span>健康医疗
</a></li>
<li><a href="forum.php?mod=forumdisplay&fid=65" title="美容保健"><span>24#:</span>美容保健
</a></li>
</UL></DIV></DIV>