.video {  
	max-width: 800px;
	margin: 0 auto 20px;
}
.video-wrp {
	position: relative;
	padding-top: 56.25%;
}
.video-wrp iframe {
	width: 100%;
	height: 100%;
	display: block;
	position: absolute;
	margin: 0;
	top: 0;
	left: 0;
	border: none;
}

.video_2 {  
	overflow: hidden;
}
.video_2-row {  
	margin: 0 -10px 0 -10px;
}
.video_2-col {
	float: left;
	width: 50%;
	margin-bottom: 20px;
}
.video_2-wrp {
	position: relative;
	padding-top: 56.25%;
	margin: 0 10px 0 10px;
	box-sizing: border-box;
}
.video_2-wrp iframe {
	width: 100%;
	height: 100%;
	display: block;
	position: absolute;
	margin: 0;
	top: 0;
	left: 0;
	border: none;
}

@media screen and (max-width:800px){
	.video-col {
		width: 100%;
	}
}