body {
	font-family: sans-serif;
	font-size: 10pt;
}

details summary {
	cursor: pointer;
}

table {
	border-spacing: 0;
	margin: 0 auto;
}

td, th {
	padding: 0 .5em;
	vertical-align: top;
}

.cal-row {
	position: relative;
}

.cal-cell {
	display: inline-block;
	height: 24px;
}

.cal-day-marker {
	border-color: black;
	border-style: groove;
	border-width: 0 2px 0 0;
	display: block;
	height: 24px;
	position: absolute;
	top: 0;
	width: 0;
}