.block-video-youtube {
	text-align: center;
}
@media screen and (max-width: 980px) {
	.block-video-youtube iframe {
		width: 640px;
		height: 360px;
	}
}
@media screen and (max-width: 768px) {
	.block-video-youtube iframe {
		width: 100%;
	}
}
@media screen and (max-width: 640px) {
	.block-video-youtube iframe {
		height: 270px;
	}
}
@media screen and (max-width: 480px) {
	.block-video-youtube iframe {
		height: 168px;
	}
}