在使用的时候引用JQuary的包
<script language="javascript" type="text/javascript" src="jquery-1.4.2.min.js"></script>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style>
#apDiv1 {
position:fixed;/*fixed;left:auto;top:auto用来实现悬浮的效果*/
left: auto;
top: auto;
bottom:auto;
width: 237px;
height:auto;
z-index: 2;
margin-top:-8px;
margin-left:40px;
text-align:center;
font-size:16px;
font-family:"黑体";
color:#965D28;
}
#menu{
display:none;
}
.daohang div{
height: 30px;
z-index: 2;
margin:0 auto;
text-align:center;
padding-top:5px;
overflow:hidden;
padding-top:10px;
color:965D28;
}
.daohang div:hover{
height:30px;
z-index:2;
margin:0 auto;
background-image:url(../img/menu-hover.png);
text-align:center;
overflow:visible;
color:#fff;
}
.daohang li{
margin-left:237px;
list-style-type:none;
background-color:#D3A23A;
width:160px;
line-height:30px;
color:#422B1D;
position:relative;
top:-40px;
background-image:url(../img/bg.jpg);
border:solid thin;
border-color:#965D28;
z-index:1;
}
.daohang li:hover{
margin-left:237px;
list-style-type:none;
background-color:#D3A23A;
width:160px;
line-height:50px;
color:#fff;
position:relative;
top:-40px;
border:solid thin;
border-color:#965D28;
background-image:url(../img/bg.png);
z-index:1;
}
.daohang a:link,a:visited{
text-decoration:none;
color:#965D28; }
.daohang a:hover{
text-decoration:none;
color:#fff;
}
</style>
</head>
<body>
<script>
function menuvisible()
{
$("nav").slideToggle(2000);/*开关*/
}
</script>
<div id="apDiv1" >
<img src="1.jpg" width="80px" />
<nav id="menu">
<div class="daohang" style="
<a href="index.html">
<div style=" color:#fff">首页
</div>
</a>
<a href="about us.html" target="_blank"><div>关于我们
</div>
</a>
<a href="services.html" target="_blank"><div>咖啡文化
</div></a>
<a href="price list.html" target="_blank"><div>价格清单
</div>
</a>
<a href="contact.html" target="_blank"><div>联系我们
</div></a>
</div>
</nav>
<div style="color:#fff;line-height:35px; background-image:url(img/menu-hover.png); border:solid medium #965D28; margin-top:3px;" onclick="menuvisible()">
<input style="color:#fff; border:none; width:100%; font-family:‘黑体‘; font-size:16px; height:100%; line-height:35px;"type="button" value="<--MENU-->" />
</div>
<div style="background-image:url(img/bg.png)"><a href="#"style="text-decoration:none; color:#965D28;line-height:30px;">TOP
</a>