*{ padding:0; margin:0; list-style:none; border:0;}
.all{ width:750px; height:300px; margin:30px auto; position:relative; overflow:hidden;}
.all ul{ width:9999px; position:absolute; left:0; top:0;}
.all ul li{ float:left; cursor:pointer;}
.cert-data {
	padding-top: 20px;
}

.cert-data .cert-thumbnail {
	cursor: pointer;
}

.cert-data .cert-desc {
	display: block;
	padding-top: 5px;
	padding-bottom: 5px;
	width: 100%;
	text-align: center;
}

.cert-data #certimg-data {
	display: none;
}

.cert-data #certimg-data button {
	font-size: 14px;
}

.cert-data #certimg-data #certimg {
	width: 100%;
	margin-top: 20px;
}