* {
	box-sizing: border-box;
}

body {
	margin: 0;
	font-family: 'JetBrains Mono', monospace;
	background: #f0f0f0;
}

.layout {
	display: flex;
	justify-content: center;
	min-height: 100vh;
}

.main {
	flex: 0 0 auto;
	width: 720px;
	padding: 20px;
}

.container {
	max-width: 720px;
}

.card {
	background: #ffffff;
	border: 1px solid #000000;
	padding: 12px;
	margin-bottom: 16px;
}

.card-headerless {
	background: #ffffff;
	border: 1px solid #000000;
	padding: 12px;
	padding-top: 0px;
	margin-bottom: 16px;
}

.card-header {
	font-weight: bold;
	margin-bottom: 6px;
}

.card-content {
	white-space: pre-wrap;
}

.center-text {
	text-align: center;
}

header {
	padding: 16px;
	top: 0;
	position: sticky;
	border-bottom: 1px solid #000;
	background: #fff;
}

.header-list {
	list-style-type: none;
  display: inline-block;
	margin: 0;
}

.header-list li {
	margin: 0;
  display: inline-block;
}

a:link,
a:visited {
    color: black;
    text-decoration: underline;
}

a:hover {
    color: black;
}

a:active {
    color: red;
}