.ul_pre li {
	margin:10px auto;
	text-indent:-1.85em;
	padding-left:1.85em;
	margin-bottom:0.5em;
}
.w800{
	max-width:800px;
	margin:0 auto;
}
.museumo02 img,
.museumo03 img{
	margin:10px auto;
}
.museumo02 .box{
	width:70px;
	border:1px solid #ccc;
	padding:5px;
	text-align:center;
	
}
.ul_btn_css2 {
	text-align: center;
}
	.ul_btn_css2 li {
		font-size: 16px;
		font-weight: bold;
		text-align: center;
		margin-bottom: 40px;
		list-style: none;
		display: inline;
		margin:0 10px;
	}
		.ul_btn_css2 li a {
			display: inline-block;
			width:180px;
			padding: 15px 20px;
			color: #fff;
			text-decoration: none;
			background: #0066cc; 
			-webkit-box-shadow: 0 0 5px 0 #999;
			-moz-box-shadow: 0 0 5px 0 #999;
			box-shadow: 0 0 5px 0 #999; 
			border-radius: 6px;
			-webkit-border-radius: 6px;
			-moz-border-radius: 6px;
		}
		.ul_btn_css2 li a:hover {
			filter:alpha(opacity=75);
			-moz-opacity:0.75;
			-khtml-opacity: 0.75;
			opacity:0.75;
		}
	.ul_btn_css2.device{
		margin:30px 0 50px 10px;
		text-align:left;
	}
	.ul_btn_css2.device li{
		font-size:14px;
	}
	.ul_btn_css2.device a{
		width:150px;
		padding:5px;
	}



@media screen and (max-width: 640px){

.ul_pre li {
	margin:10px auto;
	text-indent:-1.85em;
	padding-left:1.85em;
	margin-bottom:0.5em;
}
.ul_btn_css2 li a{
	margin:5px auto;
}
	
	
	
}