<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<style>
/* css*/
#body{
float: left;
}
#xialakuang{
background-color:#f9f9f9;
box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);/*设置下拉框的阴影*/
display: none;
}
#body a{
display: block;
padding:10px 15px;
color: #C4C4C4;
line-height: 20px;
font-size: 12px;
}
#body a:link{
text-decoration: none;
background-color: black;
}
#body a:hover{
background-color:#3E3D3D;
color: white;
}
.anniu{
background-color: black;
108px;
height: 40px;
color: white;
border: none;
cursor: pointer;
}
#body:hover #xialakuang{
display: block; /*鼠标放在div上时使下拉框显示，放在这里的目的是在鼠标往下拉框移动时下拉框不会消失*/
}
#body:hover .anniu{
background-color:#3E3D3D;
}
</style>
</head>
<body>
<div id="body">
<button class="anniu">移动下拉(css)</button>
<div id="xialakuang">
<a href="">我的主页</a>
<a href="">我的消息</a>
<a href="">我的等级</a>
<a href="">会员中心</a>
<a href="">个人设置</a>
<a href="">退出</a>
</div>
</div>
</body>
</html>