.yt-box {
	position: relative;
	width: 640px;
	height: 360px;
	padding: 0; /* remove responsive padding */
	overflow: hidden;
	border-radius: 6px;
	/*margin: 20px auto; /* centers it */
}

	.yt-box iframe {
		position: absolute;
		top: 0;
		left: 0;
		width: 100%;
		height: 100%;
		border: none;
	}


	/* Optional: blueprint corner bolts */
	.yt-box::before,
	.yt-box::after {
		content: "";
		position: absolute;
		width: 14px;
		height: 14px;
		background: #6aa9ff;
		border-radius: 2px;
	}

	.yt-box::before {
		top: -7px;
		left: -7px;
	}

	.yt-box::after {
		bottom: -7px;
		right: -7px;
	}

	.yt-box iframe {
		position: absolute;
		top: 0;
		left: 0;
		width: 100%;
		height: 100%;
		border: none;
	}