div.stage {
	position: fixed;
	left: 0;
	top: 0;
	width: 100vw;
	height: 100vh;
	z-index: 1;
	background-color: #111;
	> div.title {
		font-size: 0.9rem;
		line-height: 1;
		color: #fff;
		text-align: center;
		margin-top: 5px;
	}
	> div.fly {
		position: fixed;
		left: 50%;
		top: 50%;
		pointer-events: none;
		mix-blend-mode: screen;
	}
}
div.spacer {
	height: 300px;
}
article.first {
	position: relative;
	margin-top: 8000px;
	z-index: 2;
	background-image: url(./common/image/leather_beige.png);
}
article.second {
	position: relative;
	z-index: 2;
	background-image: url(./common/image/leather_beige.png);
}