解決焦點圖不顯示方法：去掉.ad的overflow:hidden;就可以了
<!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" />
<title>企業網站實例</title>
<script type="text/javascript" src="js/setHomeSetFav.js" charset='UTF-8'></script>
<script type="text/javascript" src='js/myfocus-2.0.1.min.js'></script>
<script type="text/javascript" src='js/mf-pattern/mF_fancy.js'></script>
<link rel="stylesheet" type="text/css" href="js/mf-pattern/mF_fancy.css">
<script type="text/javascript">
myFocus.set({
id:'picBox',//不能使用雙引號";"
})
</script>
<style type='text/css'>
*{
margin:0;
padding:0;
font-size:12px;
}
body{
background-color:#f5f5f5;
}
.top{
width:100%;
height:27px;
background:url(../images/top_bg.jpg) repeat-x;
}
.top_content{
width:1000px;
margin:0 auto;
}
.top_content li{
list-style-image:url(../images/li_bg.gif);
float:right;
width:70px;
line-height:27px;
}
.top_content a:link,.top_content a:visited{
color:#808080;
text-decoration:none;
}
.top_content a:hover,.top_content a:active{
color:#900;
}
.wrap{
width:1000px;
margin:0 auto;
}
.logo{
height:80px;
background-color:#fff;
}
.logo_left{
width:200px;
float:left;
}
.logo_right{
width:300px;
height:28px;
float:right;
margin-top:30px;
color:#808080;
}
.logo_right img{
vertical-align:middle;
margin-right:10px;
}
.tel{
font-family:'微軟雅黑';
color:#c00;
font-size:14px;
}
.nav{
height:40px;
}
.nav_left{
width:10px;
height:40px;
background:url(../images/nav_left.jpg) no-repeat;
float:left;
}
.nav_mid{
width:980px;
background:url(../images/nav_bg.jpg) repeat-x;
float:left;
}
.nav_right{
width:10px;
height:40px;
background:url(../images/nav_right.jpg) no-repeat;
float:right;
}
.nav_mid_left,.nav_mid_right{
float:left;
}
.nav_mid_left{
width:680px;
}
.nav_mid_right{
width:300px;
}
.nav_mid_left li{
list-style:none;
width:100px;
line-height:40px;
float:left;
text-align:center;
}
.nav_mid_left a:link,.nav_mid_left a:visited{
text-decoration:none;
color:#fff;
font-size:16px;
font-family:'微軟雅黑';
}
.nav_mid_left a:hover,.nav_mid_left a:active{
color:#f00;
font-size:16px;
font-family:'微軟雅黑';
}
.search_text{
width:190px;
height:25px;
margin-top:6px;
background:#fff url(../images/search.jpg) no-repeat right center;
padding-right:25px;
border:1px solid #fff;
outline:0;
}
.ad{
height:310px;
}
</style>
</head>
<body>
<div class='top'>
<div class='top_content'>
<ul>
<li><a href='#'>聯系我們</a></li>
<li><a href='#' onclick='AddFavorite(window.location,document.title)'>加入收藏</a></li>
<li><a href='#' onclick='SetHome(window.location)'>設為首頁</a></li>
</ul>
</div>
</div>
<div class='wrap'>
<div class='logo'>
<div class='logo_left'>
<img src="images/logo.jpg" alt='慕課網'>
</div>
<div class='logo_right'>
<img src="images/tel.jpg" alt='服務熱線'><span class='tel'>24小時服務熱線：123-456-7890</span>
</div>
</div>
<div class='nav'>
<div class='nav_left'></div>
<div class='nav_mid'>
<div class='nav_mid_left'>
<ul>
<li><a href="#">首  頁</a></li>
? ? ? ?<li><a href="list.html">關于慕課</a></li>
? ? ? ?<li><a href="list.html">新聞動態</a></li>
? ? ? ?<li><a href="list.html">課程中心</a></li>
? ? ? ?<li><a href="list.html">在線課程</a></li>
? ? ? ?<li><a href="list.html">人才招聘</a></li>
</ul>
</div>
<div class='nav_mid_right'>
<form action='' method='post'>
<input type="text" class="search_text">
</form>
</div>
</div>
<div class='nav_right'></div>
</div>
<div class='ad' id='picBox'>
<div class='loading'><img src="images/loading.gif" alt='圖片加載中'></div>
<div class='pic'>
<ul>
<li><img src="images/ad2.jpg"/></li>
<li><img src="images/ad3.jpg"/></li>
<li><img src="images/ad4.jpg"/></li>
</ul>
</div>
</div>
</div>
</body>
