body {
	text-align: center;
}

#mainarea {
	display: inline-block;
	padding: 0.5em;
}

#title {
	font-size: 200%;
	margin: 0;
	padding: 0;
}

#questionCountArea {
	margin-top: 0.5em;
}

#queryAreaWrapper {
	margin: 1em 0;
}

#queryArea {
	font-size: 180%;
}

#buttonArea {
	display: grid;
	grid-auto-flow: row;
	margin-bottom: 1em;
}

button {
	font-size: 100%;
	padding: 0.5em;
	margin-top: 1em;
}

#confusionMatrixArea {
	margin-top: 1em;
}

#answerDetailArea {
	margin-top: 1em;
}

#githubLinkArea {
	font-size: small;
	opacity: 0.7;
}

.hidden {
	visibility: hidden;
}

.removed {
	display: none;
}

table {
	border-collapse: collapse;
	display: inline-table;
}

th, td {
	border: 1px solid currentColor;
	padding: 0.2em;
}

tr.wrong {
	background-color: lightpink;
}

td.verticalLabel {
	writing-mode: vertical-rl;
	width: 1.4em;
}