.youtube-container {
	position: relative;
	width: 100%;
	padding-bottom: 56.25%;
	/* 16:9 aspect ratio */
	height: 0;
	overflow: hidden;
	margin: 1rem 0;
	/* optional: spacing above/below */
}

.youtube-container iframe {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
}