* {
	margin:0;
	padding:0;
}
ul {
	list-style:none;
}
.select {
	width:100px;
	margin:50px auto;
}
.select > a {
	display:inline-block;
	width:100%;
	height:30px;
	border:1px solid #ccc;
	line-height:30px;
	text-align:center;
	color:#333;
	text-decoration:none;
}
.select > ul {
	/*border-left:1px solid #ccc;
	border-right:1px solid #ccc;
	border-bottom:1px solid #ccc;
	*/
            position:absolute;
	border:1px solid #ccc;
	border-top-width:0;
	width:100px;
	/*默认隐藏下拉列表*/
            display:none;
}
.select > ul > li {
	text-align:center;
	border-top:1px solid #ccc;
	margin-top:-1px;
}
.select > ul > li > a {
	text-decoration:none;
	color:#333;
}