.homepage-y-video iframe {
    width: 720px;
    height: 405px;
}
@media screen and (max-width:992px){
	.homepage-y-video iframe {
		width: 560px;
		height: 315px;
	}
}
@media screen and (max-width:425px){
	.homepage-y-video iframe {
		width: 350px;
		height: 196px;
	}
}