.fraction{
	text-align:center;
	border-collapse:collapse;
}

.fraction .e{
/*	font-size:x-large;*/
}
.fraction .sz{
	border-bottom:1px solid black;
	padding:1px 3px;
}
.fraction .n{
	padding:1px 3px;
}

/*.fraction td{padding:2px 5px;}*/

.fraction .fn{border-top:1px solid blue;}
.fraction input{text-align:center;}
.type-frac{border-collapse:separate;}



.example .fraction .sz{border-bottom:1px solid blue;}
.show .fraction .sz{border-bottom:1px solid blue;}
.ex .fraction .sz{border-bottom:1px solid red;}
.question .fraction .sz{border-bottom:1px solid blue;}
.solution .fraction .sz{border-bottom:1px solid black;}