<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd&quot>
<html xmlns="http://www.w3.org/1999/xhtml&quot>
<head>
<meta http-equiv="Content-Type" content="text/html charset=gb2312" />
<title>选项卡</title>
<style type="text/css">
<!--
/* 初始化 */
body {
font: 12px/1 "宋体", SimSun, serif
background:#fff
color:#000
}
ul,
li,
dl,
dt,
dd {
margin:0
padding:0 /* 清除浏览器默认的margin和padding值 */
}
ul,
li {
list-style:none outside /* 清除浏览器中列表项默认的占位 */
}
a {
text-decoration:none
}
img {
border:0
}
/* 选项卡整体外观定义 */
.tabList {
width:400px
height:160px
overflow:hidden
}
.tabList .tabBox {
height:100%
position:relative
background:#09c
}
.tabList .tabBox li {
float:left
width:25%
text-align:center
}
.tabList h4 {
margin:0
height:26px
font-size:1em
line-height:22px
}
.tabList h4 a {
color:#039
font-weight:normal
display:block
background:#bfeafd url(http://www.22333.com/d/file/20090218/f27ae4b68b24dcf2e2ca0f22b3274fbb.png) no-repeat
padding-left:5px
}
.tabList h4 a span {
display:block
background:url(http://www.22333.com/d/file/20090218/f27ae4b68b24dcf2e2ca0f22b3274fbb.png) no-repeat top right
padding-right:5px
}
.tabList h4 a:hover,
.tabList .tabOn h4 a{
background-position:0 -50px
}
.tabList h4 a:hover span,
.tabList .tabOn h4 a span {
background-position:right -50px
}
.tabList .tabContentBox li{
width:auto
margin-top:0
}
.tabList .tabContentBox {
width:390px
height:130px
border:1px solid #069
text-align:left
overflow:hidden
background:#fff
position:absolute
top:22px
left:0
display:none
margin:4px
}
.tabList li:hover .tabContentBox,
.tabList .tabOn .tabContentBox {
display:block
}
/* 以下是对各项内容的CSS定义 */
.tabList .tabContentBox .blog,
.tabList .tabContentBox .group {
color:#999
line-height:2em
margin:5px
}
.tabList .tabContentBox .blog dt,
.tabList .tabContentBox .group dt,
.tabList .tabContentBox .blog dd,
.tabList .tabContentBox .group dd{
float:left
border-bottom: 1px dotted #9cf
}
.tabList .tabContentBox .blog dt,
.tabList .tabContentBox .group dt {
width:60%
white-space:nowrap
overflow:hidden
clear:left
font-size:1.1em
}
.tabList .tabContentBox .blog dt a,
.tabList .tabContentBox .group dt a {
color:#039
display:block
margin-left:5px
padding-left:12px
background: url(http://www.22333.com/d/file/20090218/f30e1a123510c963e9600e93a9d6139c.png) no-repeat 5px 11px
}
.tabList .tabContentBox .blog dt a:hover,
.tabList .tabContentBox .group dt a:hover {
color:#f90
background-position:5px -19px
}
.tabList .tabContentBox .blog dd,
.tabList .tabContentBox .group dd {
color:#0cf
width:20%
float:left
white-space:nowrap
overflow:hidden
}
.tabList .tabContentBox .blog dd a,
.tabList .tabContentBox .group dd a {
color:#069
}
.tabList .tabContentBox .blog dd a:hover,
.tabList .tabContentBox .group dd a:hover {
color:#f90
}
.tabList .tabContentBox .album li,
.tabList .tabContentBox .share li{
width:24.9%
float:left
padding-top:15px
text-align:center
}
-->
</style>
<script type="text/javascript" language="javascript">
<!--
window.onload = tabEffect
function tabEffect()
{
var allElements = document.getElementsByTagName('*')
for (var i=0 i<allElements.length i++)
{
if (allElements[i].className.indexOf('tabOption') >= 0)
{
allElements[i].onmouseover = mouseOver
}
}
}
function mouseOver()
{
tabList = this.parentNode
tabOptions = tabList.getElementsByTagName("li")
for (var i=0 i<tabOptions.length i++)
{
if (tabOptions[i].className.indexOf('tabOption') >= 0)
{
tabOptions[i].className = "tabOption"
}
}
this.className += " tabOn"
}
-->
</script>
</head>
<body>
<div class="tabList" id="tabList1">
<ul class="tabBox">
<li class="tabOption tabOn"><h4><a href="/blog/" title="单击,跳转到所有[日志]列表"><span>日志</span></a></h4>
<div class="tabContentBox">
<dl class="tabContent blog">
<dt><a href="http://www.22333.com/webdevelop/21722.html&quot title="在PHP中实现文件的上传功能的方法">在PHP中实现文件的上传功能的方法</a></dt>
<dd class="name"><a href="#11" title="">QUESTER</a></dd>
<dd>2009-01-10</dd>
<dt><a href="http://www.22333.com/graphic/21739.html&quot title="Fireworks教程:小灯泡绘制全过程">Fireworks教程:小灯泡绘制全过程</a></dt>
<dd class="name"><a href="#11" title="作者:snl">snl</a></dd>
<dd>2009-01-10</dd>
<dt><a href="http://www.22333.com/webdevelop/21720.html&quot title="PHP程序不实用大型系统的九大原因">PHP程序不实用大型系统的九大原因</a></dt>
<dd class="name"><a href="#11" title="作者:豆猫">豆猫</a></dd>
<dd>2009-01-10</dd>
<dt><a href="http://www.22333.com/media/21667.html&quot title="Flash鼠绘:绘制金属立体相框效">Photoshop制作一张旧的黑桃A扑克牌</a></dt>
<dd class="name"><a href="#11" title="作者:greengnn">greengnn</a></dd>
<dd>2009-01-10</dd>
<dt><a href="http://www.22333.com/media&quot title="日志标题:Photoshop CS3教程">Photoshop CS3教程</a></dt>
<dd class="name"><a href="#11" title="作者:amethyst01">amethyst01</a></dd>
<dd>2009-01-10</dd>
</dl>
</div>
</li>
<li class="tabOption"><h4><a href="/album/" title="单击,跳转到所有[相册]列表"><span>相册</span></a></h4>
<div class="tabContentBox">
<ul class="tabContent album">
<li><a href="#" title="查看相册内容"><img src="http://www.22333.com/d/file/20090218/b53843e1e244bd54b5d040b67f527856.jpg&quot width="80" height="100" alt="封面" title="相册的标题" /></a></li>
<li><a href="#" title="查看相册内容"><img src="http://www.22333.com/d/file/20090218/b53843e1e244bd54b5d040b67f527856.jpg&quot width="80" height="100" alt="封面" title="相册的标题" /></a></li>
<li><a href="#" title="查看相册内容"><img src="http://www.22333.com/d/file/20090218/b53843e1e244bd54b5d040b67f527856.jpg&quot width="80" height="100" alt="封面" title="相册的标题" /></a></li>
<li><a href="#" title="查看相册内容"><img src="http://www.22333.com/d/file/20090218/b53843e1e244bd54b5d040b67f527856.jpg&quot width="80" height="100" alt="封面" title="相册的标题" /></a></li> </ul>
</div>
</li>
<li class="tabOption"><h4><a href="/share/" title="单击,跳转到所有[分享]列表"><span>分享</span></a></h4>
<div class="tabContentBox">
<ul class="tabContent share">
<li><a href="#" title="查看内容"><img src="http://www.22333.com/d/file/20090218/3ed00ee15a752e7baf0671bb2772c8cc.jpg&quot width="80" height="100" alt="封面" title="相册的标题" /></a></li>
<li><a href="#" title="查看内容"><img src="http://www.22333.com/d/file/20090218/3ed00ee15a752e7baf0671bb2772c8cc.jpg&quot width="80" height="100" alt="封面" title="相册的标题" /></a></li>
<li><a href="#" title="查看内容"><img src="http://www.22333.com/d/file/20090218/3ed00ee15a752e7baf0671bb2772c8cc.jpg&quot width="80" height="100" alt="封面" title="相册的标题" /></a></li>
<li><a href="#" title="查看内容"><img src="http://www.22333.com/d/file/20090218/3ed00ee15a752e7baf0671bb2772c8cc.jpg&quot width="80" height="100" alt="封面" title="相册的标题" /></a></li>
</ul>
</div>
</li>
<li class="tabOption"><h4><a href="/group/" title="单击,跳转到所有[群组]列表"><span>群组</span></a></h4>
<div class="tabContentBox">
<dl class="tabContent group">
<dt><a href="http://www.22333.com&quot title="标题:优秀广告设计,不服不行!">优秀广告设计,不服不行!</a></dt>
<dd class="name"><a href="#11" title="群组:设计视觉">设计视觉</a></dd>
<dd>2009-01-10</dd>
<dt><a href="http://www.22333.com&quot title="标题:Photoshop 的真人动漫效果">Photoshop 的真人动漫效果</a></dt>
<dd class="name"><a href="#11" title="群组:手绘爱好者">手绘爱好者</a></dd>
<dd>2009-01-10</dd>
<dt><a href="http://www.22333.com&quot title="标题:网站内容结构化探讨">网站内容结构化探讨</a></dt>
<dd class="name"><a href="#11" title="群组:WEB标准化">WEB标准化</a></dd>
<dd>2009-01-10</dd>
<dt><a href="http://www.22333.com&quot title="标题:CSSzengarden的代码里还有什么">CSSzengarden的代码里还有什么</a></dt>
<dd class="name"><a href="#11" title="群组:WEB标准化">WEB标准化</a></dd>
<dd>2009-01-10</dd>
<dt><a href="http://www.22333.com&quot title="标题:某些人眼中的色彩">某些人眼中的色彩</a></dt>
<dd class="name"><a href="#11" title="群组:设计视觉">设计视觉</a></dd>
<dd>2009-01-10</dd>
</dl>
</div>
</li>
</ul>
</div>
</body>
</html>
要会改代码 背景给你拉
1.设置class或者id,加以区分2.比如说上级菜单是div,如下:
<div>
<table></table>
<table></table>
</div>
那么,在css中第一个table可以用“div>table{ }“来写