iframe{
    width: 800px;
    height: 450px;
}
@media screen and (max-width: 920px) {
	iframe {
		width: 650px;
	}
}
@media screen and (max-width: 690px) {
	iframe {
		width: 450px;
        height: 600px;
	}
}
@media screen and (max-width: 490px) {
	iframe {
		width: 380px;
        height: 600px;
	}
}
@media screen and (max-width: 400px) {
	iframe {
		width: 320px;
        height: 500px;
	}
}