body {
	color: #333;
	
	font-size: 16px;
}

a {
	color: #333;
	text-decoration: underline;
}

a:visited {
	color: #777;
	text-decoration: underline;
}

#back-black {
	position: fixed;
	top: 0;
	left: 0;
	bottom: 0;
	
	width: 5%;
	
	background-color: #333;
}

#back-blue {
	position: fixed;
	top: 0;
	right: 0;
	bottom: 0;
	
	width: 15%;
	
	background-color: rgb(0, 175, 236);
}

#content {
	padding-left: 10%;
	padding-right: 20%;
}

#logo {
	letter-spacing: -0.05em;
	font-size: 80px;
}

#airplane {
	position: fixed;
	bottom: 3%;
	right: 18%;
	
	width: 30%;
	
	opacity: 0.05;
	
	pointer-events: none;
}

.section {
	margin: 10px 0;
}

.section .header {
	margin-bottom: -20px;
	
	color: rgb(0, 175, 236);
	
	letter-spacing: -0.03em;
	font-size: 40px;
	font-family: "din-condensed-web", "a-otf-midashi-go-mb31-pr6n", sans-serif;
}

.section .body {
	font-family: "a-otf-ud-shin-go-pr6n", sans-serif;
}

.expl,
.date {
	color: rgb(0, 175, 236);

	letter-spacing: -0.03em;
	font-size: 14px;
	font-family: "Helvetica Neue", "Hiragino Kaku Gothic ProN", "Segoe UI", "Meiryo", sans-serif;
}

dt {
	font-size: 24px;
	font-family: "a-otf-ud-shin-go-pr6n", sans-serif;
}

dd {
	color: #333;

	font-family: "a-otf-ud-shin-go-pr6n", sans-serif;
}