.video_box{
	width:40%;
	max-width: 400px;
	height:auto;
	text-decoration:none;
	position:relative;
	display: inline-block;
	float: left;
	background-color: #50507c;
	margin: 1%;
	border: none;
	padding:5px;
	z-index : 1;	
}

.video_box img{
	max-width:400px;
	width:100%;
	height:auto;
	position:relative;
	display:block;
	margin:auto;
	padding:0px;
}

.video_box .text_title{
	display:block;
	font-family: "cwTeXHei", sans-serif;
	color: white;
	height:40px;
}

.video_box:hover{
	width: 40%;
	z-index: 2;
	box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
	background-color: #99ddff;
}

.video_box:hover .text_title{
	color: #28283e;
}

#video_window{
	display: none;
	position: fixed;
	z-index: 4;
	left:0;
	top: 0;
	width: 100%;
	height:100%;
	background-color: rgba(0,0,0,0.4);
}

.video_content {
    position: relative;
    background-color: #50507c;
    margin: auto;
    padding: 0;
    width: 80%;
	overflow: auto;
    box-shadow: 0 4px 8px 0 rgba(0,0,0,0.2),0 6px 20px 0 rgba(0,0,0,0.19);
    -webkit-animation-name: animatetop;
    -webkit-animation-duration: 0.4s;
    animation-name: animatetop;
    animation-duration: 0.4s;
}

@-webkit-keyframes animatetop {
    from {top:-300px; opacity:0} 
    to {top:0; opacity:1}
}

@keyframes animatetop {
    from {top:-300px; opacity:0}
    to {top:0; opacity:1}
}

.close {
	z-index: 4;
    color: white;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close:hover,
.close:focus {
    color:#99ddff;
    text-decoration: none;
    cursor: pointer;
}

.popup{
	background-color: #50507c;
	height: 100%;
	padding-bottom:5%;
}

.popup iframe{
	display:block;
	width: 100%;
	height: 100%;
	border: none;
}