.centrato {
	position: absolute;
	left: 50%;
	top: 50%;
	transform: translate(-50%, -50%);
	padding: 20px;
}
.centrato_orizzontale {
	position: relative;
	text-align: center;
	padding: 10px;
}
.bordato {
	border: 3px solid #06C;
}
.riga {
	display: flex;
	flex-direction: row;
}
.colonna {
	flex: 50%;
}
@media (max-width: 800px) {
	.riga {
		flex-direction: column;
	}
}
a {
	text-decoration: none;
}
a:hover {
	text-decoration: underline;
}