.mobile .card {
	font-size: 2.25rem;
}

.card {
	text-align: center;
	font-size: 1.75rem;
}

.card span {
	display: block;
}

hr {
	height: 10px;
	border: none;
	opacity: 20%;
	background-color: black;
}
.nightMode hr { background-color: white; }

.card.front .target-word-reading,
.card.front .target-word-translation,
.card.front .sentence-translation,
.card.front hr,
.card.front ruby rt {
	display: none;
}

.sentence-translation {
	margin-top: 1em;
}