.a {
	font-size: 12px;
	font-style: normal;
	line-height: 18px;
	font-weight: normal;
	font-variant: normal;
	letter-spacing: normal;
	word-spacing: normal;
}
.c {
	font-size: 13px;
	line-height: 18px;
}

.b {
	font-size: 12px;
	line-height: 20px;
}