video{
	max-width: 90%;
}
.video{
	text-align: center;
}
.navChild{
	width: /*396.8*/0px;
	height: 44px;
	background-color: rgba(41,68,142,0.9);
	color: #fff;
	margin-top: 27px;
	display: none;/*block*/
}
.navChild li{
    text-decoration: none;
    list-style: none;
    float: left;
    color: #FFFFFF;
    width: 90px;
    height: 44px;
    line-height: 44px;
    text-align: center;
}
.navChild li:hover{
	background-color: #eee;
	color: rgba(41,68,142,0.9);
}

/*
ul.box {
	width: 980px;
	height: auto;
	margin: 20px auto;
	padding: 0;
	clear: both;
	overflow: hidden;
}
*/
div.box {
	margin: 0px;
	padding: 0;
	width: 250px;
	height: 190px;
	border: 2px solid #efefef;
	position: relative;
	float: left;
	background: #ffffff;
	line-height: 190px;
	font-size: 32px;
	text-align: center;
	box-shadow: 0 1px 4px rgba(0, 0, 0, 0.27), 0 0 60px rgba(0, 0, 0, 0.1) inset;
}

div.box:before {
	z-index: -2;
	position: absolute;
	background: transparent;
	width: 90%;
	height: 80%;
	content: '';
	left: 20px;
	bottom: 8px;
	transform: skew(-10deg) rotate(-4deg);
/*skew图形转换（变形） 负值向左*/
	box-shadow: 0 8px 20px rgba(0, 0, 0, 0.6);
}

div.box:after {
	z-index: -1;
	position: absolute;
	background: transparent;
	width: 90%;
	height: 80%;
	content: '';
	right: 20px;
	bottom: 8px;
	transform: skew(10deg) rotate(4deg);
	box-shadow: 0 8px 16px rgba(0, 0, 0, 0.6);
}

div.box img {
	width: 240px;
	height: 180px;
	padding: 13px;
}