html, body {
	height: 100%;
	width: 100%;
	font-family: Helvetica, Arial, sans-serif;
	font-size: 16px;
	overflow: hidden;
	line-height: 1.3;
	height: 100%;
	width: 100%;
	background-color: #333;
	margin: 0;
}

#bk {
	z-index: 1;
	background-image: -moz-radial-gradient(transparent, rgba(0,0,0,.3));
	background-image: -webkit-radial-gradient(transparent, rgba(0,0,0,.3));
	background-image: -ms-radial-gradient(transparent, rgba(0,0,0,.3));
	background-image: -o-radial-gradient(transparent, rgba(0,0,0,.3));
	background-image: radial-gradient(transparent, rgba(0,0,0,.3));
	position: absolute;
	width: 100%;
	height: 100%;
}

#content {
	position: absolute;
	top: 0;
	right: 0;
	bottom: 0;
	left: 0;
	margin: auto;
	z-index: 2;
	width: 500px;
	max-width: 50vw;
	height: 150px;
	max-height: 30vw;
	text-align: center;
	color: #fff;
}

	#content #ttl {
		font-size: min(15vw, 5em);
		text-shadow: 0 1px 3px rgba(0,0,0,.2);
		cursor: default;
	}

		#content #ttl:hover {
			animation: wiggle 10s infinite;
		}

	#content #line {
		font-size: min(4vw, 1.1em);
		color: #fff;
		opacity: 0.5;
		text-decoration: none;
	}

		#content #line:hover {
			opacity: 1;
		}

@keyframes wiggle {
	0% { transform: rotate(0deg) scale(1.0); }
	2% { transform: rotate(5deg) scale(0.9); }
	4% { transform: rotate(-5deg) scale(1.1); }
	6% { transform: rotate(0deg) scale(1.0); }
	100% { transform: rotate(0deg) scale(1.0); }
}