效果图如下：鼠标移到标题上，标题下面显示标题对应的内容。实现的方法如下：
1、引入css和js文件
<link href="public/CSS/StyleSheet.css" rel="stylesheet" />
<script src="public/jquery/js/jquery.js"></script>
其中，StyleSheet.css的内容如下：
.picture-title{height: 32px;line-height: 26px;margin-top:5px;font-size: 15px;color:black;}
.picture-title ul li {height: 28px; padding: 8px; line-height: 28px;padding-bottom: 4px;float: left; display: inline-block; cursor: pointer; text-align: center; font-size: 15px;}
.picture-title-active {background: url(image/picture_title_bg.png) left center no-repeat;font-weight: bold;}
.picture-content {padding:0px 10px;}
.picture-content ul li{font-size:14px;FONT-FAMILY:Microsoft YaHei;line-height:28px;padding-left:12px;background:url(image/point.jpg) left center no-repeat;margin-top: 5px;border-bottom: 1px dashed #b6b6b6;}
2、html代码：
<div>
<div class="picture-title">
<ul>
<li flag="pic_title" for="pic_cnt_1" class="picture-title-active">测试1</li>
<li flag="pic_title" for="pic_cnt_2" id="HeadSection1" runat="server">测试2</li>
<li flag="pic_title" for="pic_cnt_3" id="HeadSection2" runat="server">测试3</li>
<li flag="pic_title" for="pic_cnt_4" id="HeadSection3" runat="server">测试4</li>
</ul>
</div>
<div class="picture-content">
<ul id="pic_cnt_1">
<li>测试1</li>
<li>测试1</li>
<li>测试1</li>
</ul>
<ul id="pic_cnt_2" style="display: none;">
<li>测试2</li>
<li>测试2</li>
<li>测试2</li>
</ul>
<ul id="pic_cnt_3" style="display: none;">
<li>测试3</li>
<li>测试3</li>
<li>测试3</li>
</ul>
<ul id="pic_cnt_4" style="display: none;">
<li>测试4</li>
<li>测试4</li>
<li>测试4</li>
</ul>
</div>
</div>
3、js代码：
<script type="text/ecmascript">
$(document).ready(function () {
$("li[flag='pic_title']").mousemove(function () {
$("li[flag='pic_title']").each(function () {
$(this).attr("class", "");
$("#" + $(this).attr("for")).hide();
});
$(this).attr("class", "picture-title-active");
$("#" + $(this).attr("for")).show();
});
});
</script>