#main.contact .certificate .header_name{
	margin-bottom: 30px;
}
#main .certificate-list .list{
	display: none;
}
#main .certificate-list .list.active{
	display: block;
}
#main .certificate-list .list .list_li{
	width: 350px;
	height: 100%;
	float: left;
	    position: relative;
	    /* width: 50%; */
	    margin-right: 50px;
	    display: -webkit-flex;
	    /* display: unset; */
	    -webkit-flex-direction: unset;
	    flex-direction: unset;
	    -webkit-flex-wrap: unset;
	    flex-wrap: unset;
	    -webkit-flex-wrap: unset;
	    flex-wrap: unset;
	    -webkit-justify-content: unset;
	    justify-content: unset;
		margin-top: 60px;
		overflow: hidden;
}
#main .certificate-list .list .list_li::after{
	content: '';
	clear: both;
}

#main .certificate-list .list .list_li img{
	width: 350px;
	height: 100%;
	display: block;
	height: 252px;
}
#main .certificate-list .list .list_li.ac img{
		height: 500px;
}