#actividad > *{
	font-family: verdana;
	display: inline-block;
}

#cont{
	margin: 50px 60px;
}

#cont > *{
	display: inline-block;
	vertical-align: middle;
}
.deco{
	border-radius: 10px;
	border: 3px solid #C81A32;
	max-width: 340px;
}

#act li{
	padding: 10px 0;
	font-weight: bold;
}
#act > li > *{
	display: inline-block;
	vertical-align: middle;
	margin: 0;
}

.sol > input{
	width: 75px;
	background-color: transparent;
	border: 1px solid #C81A32;
	border-radius: 5px;
	text-align: center;
	font-weight: bold;
	font-size: 12px;
}

.answer{
	visibility: hidden;
}