<!--
*{padding:0margin:0}
img{border:0display:block}
BODY {
PADDING-RIGHT: 0pxPADDING-LEFT: 0pxFONT-SIZE: 12pxPADDING-BOTTOM: 0pxMARGIN: 0px autoCOLOR: blackLINE-HEIGHT: 150%PADDING-TOP: 10pxBACKGROUND-COLOR: whiteTEXT-ALIGN: center
}
.dis {
DISPLAY: block
}
.undis {
DISPLAY: none
}
#cntR {
WIDTH: 302px
}
#NewsTop {
CLEAR: bothMARGIN-BOTTOM: 16px
}
#NewsTop P {
FLOAT: leftLINE-HEIGHT: 21px
}
#NewsTop P.topTit {
FONT-WEIGHT: boldWIDTH: 117px
}
#NewsTop P.topC0 {
BACKGROUND: #dcdcdcBORDER-LEFT: #f2f2f2 1px solidWIDTH: 40pxCURSOR: pointer
}
#NewsTop P.topC1 {
BACKGROUND: #c2130eBORDER-LEFT: #f2f2f2 1px solidWIDTH: 40pxCOLOR: #fff
}
#NewsTop #NewsTop_tit {
BORDER-BOTTOM: #c2130e 3px solidHEIGHT: 21px
}
#NewsTop #NewsTop_cnt {
PADDING-LEFT: 32pxBACKGROUND: url(http://www.popuni.com/attachments/month_0703/o2007320133249.gif) no-repeat 12px 13pxLINE-HEIGHT: 26pxPADDING-TOP: 7pxHEIGHT: 260pxTEXT-ALIGN: left
}
#NewsTop #NewsTop_cnt A {
COLOR: #666TEXT-DECORATION: none
}
#NewsTop #NewsTop_cnt A:hover {
COLOR: #c2130eTEXT-DECORATION: underline
}
-->
</style>
<DIV id="cntR" style="float:leftdisplay:blockclear:both">
<DIV id="NewsTop">
<DIV id="NewsTop_tit">
<P class="topTit">新闻排行</P>
<P class="topC0">国内</P>
<P class="topC0">国际</P>
<P class="topC0">社会</P>
<P class="topC0">网评</P>
</DIV>
<DIV id="NewsTop_cnt">
<SPAN title="Don't delete me"></SPAN>
<SPAN>
<A href="#" target=_self>新疆阜康铁路桥梁坍塌多节运煤车厢侧翻坠河</A><BR>
<div align="right"><A href="#" target=_self>...more</A></div>
</SPAN>
<SPAN>
<A href="#" target=_self>美华裔女兵在营房上吊死亡军方介入调查(图)</A><BR>
<div align="right"><A href="#" target=_self>...more</A></div>
</SPAN>
<SPAN>
<A href="#" target=_self>最高法:承诺不判赖昌星死刑没有超越法律程序</A><BR>
<div align="right"><A href="#" target=_self>...more</A></div>
</SPAN>
<SPAN>
<A href="#" target=_self>铁道部回应吴敬琏质疑:春运不涨价将长期坚持</A><BR>
<div align="right"><A href="#" target=_self>...more</A></div>
</SPAN>
</DIV>
<SCRIPT>
var Tags=document.getElementById('NewsTop_tit').getElementsByTagName('p')
var TagsCnt=document.getElementById('NewsTop_cnt').getElementsByTagName('span')
var len=Tags.length
var flag=1//修改默认值
for(i=1i<leni++){
Tags[i].value = i
Tags[i].onmouseover=function(){changeNav(this.value)}
TagsCnt[i].className='undis'
}
Tags[flag].className='topC1'
TagsCnt[flag].className='dis'
function changeNav(v){
Tags[flag].className='topC0'
TagsCnt[flag].className='undis'
flag=v
Tags[v].className='topC1'
TagsCnt[v].className='dis'
}
</SCRIPT>
</DIV>
</DIV>
代码粘贴的太复杂;
先给你分析一下原理:二级菜单没有在没有hover属性的情况下是隐藏的所以需要display:none,当鼠标hover的时候二级菜单才会列出来,这是纯css可以实现的;
知道上面的原理之后,下面比较容易实现具体看例子:
HTML代码:
<ul><li><a href="">一级菜单</a></li>
<li><a href="">一级菜单</a>
<ul class="drop-ul">
<li ><a href="">二级菜单</a></li>
</ul>
</li>
</ul>
CSS代码:
ul li ul.drop-ul{ display: noneposition:relative }/*正常情况下隐藏*/ul li:hover ul.drop-ul li{display: block} /*当鼠标放上去二级菜单li 显示出来*/
/*这个时候你会发现二级菜单显示的位置可能不对可以使用position属性*/
ul li:hover ul.drop-ul li{position:absolute}
/*通过top right left 调整位置,根据实际情况调整背景颜色,字体颜色等,细节东西*/
此时可能会发现会二级菜单出现有那么一点点的生硬;没关系配合jquery实现缓慢展现效果
$(document).ready(function() {if($(window).width() > 768) {
$('ul li').hover(
function() {
$('ul', this).stop().slideDown(200)
},
function() {
$('ul', this).stop().slideUp(200)
}
)
}
})
注意不知道jquery的新手使用记住先加载Jquery.min.js文件,放在此段js前面;