.embed-responsive {
		position: relative;
		display: block;
		width: 100%;
		padding: 0;
		overflow: hidden;
	}

	.embed-responsive::before {
		display: block;
		content: "";
	}

	.embed-responsive .embed-responsive-item,
	.embed-responsive iframe,
	.embed-responsive embed,
	.embed-responsive object,
	.embed-responsive video {
		position: absolute;
		top: 0;
		bottom: 0;
		left: 0;
		width: 100%;
		height: 100%;
		border: 0;
	}

	.embed-responsive-21by9::before {
		padding-top: 42.857143%;
	}

	.embed-responsive-16by9::before {
		padding-top: 56.25%;
	}

	.embed-responsive-4by3::before {
		padding-top: 75%;
	}

	.embed-responsive-1by1::before {
		padding-top: 100%;
	}

	#modal {
		background: rgba(0, 0, 0, 0.8);
		color: #fff;
		position: fixed;
		top: -100vh;
		left: 0;
		height: 100vh;
		width: 100vw;
		transition: all .5s;
		z-index: 998;
	}

	#modal div {
		width: 40%;
		height: 50%;
		position: absolute;
		top: 0;
		left: 0;
		bottom: 0;
		right: 0;
		margin: auto;
		text-align: center;
	}

	@media (max-width: 576px) {
		#modal div {
			width: 98%;
			height: 98%;
			position: absolute;
			top: 0;
			left: 0;
			bottom: 0;
			right: 0;
			margin: auto;
			text-align: center;
		}
	}

	#mostrar-modal {
		display: none;
	}

	#mostrar-modal+label {
		cursor: pointer;
	}

	#mostrar-modal+label:hover {
		text-decoration: underline;
		color:red;
	}

	#mostrar-modal:checked~#modal {
		top: 0;
	}

	#cerrar-modal {
		display: none;
	}

	#cerrar-modal+label {
		position: absolute;
		top: 1em;
		right: 1em;
		z-index: 100;
		color: #fff;
		font-weight: bold;
		cursor: pointer;
		background: tomato;
		width: 25px;
		height: 25px;
		line-height: 25px;
		text-align: center;
		border-radius: 50%;
		transition: all .5s;
		z-index: 999;
		font-family: Verdana, Geneva, Tahoma, sans-serif;
	}

	#cerrar-modal:checked~#modal {
		top: -100vh;
	}

	#cerrar-modal+label {
		display: none;
	}

	#mostrar-modal:checked~#cerrar-modal+label {
		display: block;
	}

	#cerrar-modal:checked+label {
		display: none;
	}