*{
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}
li{
	list-style: none;
}
body{

}

.videobox{
	height: 100%;
	width: 863px;
	overflow: hidden;
	padding-left: 9px;
}

.videoleft{
	width: 49.5%;
	height: 240px;
	float: left;
    margin: 134px 0;
}
.videoleft:first-child{
	margin-right: 1%;
}
.nav{
	width: calc(100% - 190px);
	position: absolute;
	bottom: 12px;
	z-index: 100;
	left: 190px;
}
.nav p{
	display: inline-block;
}
.nav .action{
	float: right;
	margin-top: 16px;
}
.nav .action a{
	font-size: 14px;
	margin-left: 20px;
}
.onevideo {
	padding-top: 9px;
}
.onevideo .videoleft{
	width: 100%;
	height: 91%;
	margin: 0;
}

.novideo{
	display: flex;
}
.novideo .novideotxt{
	margin: auto;
	font-size: 18px;
}