.middle {
    width: 100%;
    margin-top:7vh;
}
.middle>img{
	width: 100%;
	vertical-align: middle;
}
nav{
	margin: 2vh 2vw 0;
	border-bottom: 1px solid #DCDCDC;
	padding-bottom: 2vh;
	font-size: 4vw;
}
nav>i{
	font-size: 4vw !important;
}
.content{
	margin: 2vh 2vw 0;
}
.list>ul{
	width: 96vw;
    font-size:0;
}
.list>ul>li{
	vertical-align: top;
	width: 47vw;
	margin-bottom: 2vh;
	display: inline-block;
    vertical-align: top;
}
.list>ul>li:nth-child(odd){
	margin-right: 2vw;
}
.list>ul>li>img{
	width: 100%;
	vertical-align: middle;
    height:100px;
}
.list>ul>li>h2{
	font-size: 3.2vw;
	margin-top: .5vh;
	width: 100%;
	text-align: center;
}
.video{
	display: none;
	top: 45vh;
	left: 0;
	position: fixed;
	background-color: #fff; 
	overflow: hidden;
}
.video>i{
	margin: .5vh 2vw;
	display: inline-block;
}