h1, h2, h3, h4 {
	position: relative;
	margin-top: 1.2em;
	font-weight: bold;
}
h1 {
	margin-bottom: 1.2em;
}
h1::before {
	content: '';
	position: absolute;
	bottom: -1rem;
	left: 0;
	height: 4px;
	width: 60px;
	background: #00000029;
}
h3 {
	font-size: 1.4em;
}
h4 {
	font-size: 1.2em;
}
#main-content .container {
	max-width: 900px;
}

#references {
	background-color: var(--light-color);
}

#references ol {
	font-size: 14px;
	text-align: left;
	font-weight: bold;
	opacity: .75;
}

#references li {
	margin-bottom: 6px;
}

#references ol span {
	font-weight: normal;
}