.intro 
{ 
 text-align: center;
font-size: 1.2rem;
margin-top: 30px;
}
.contenedor {
	display:grid;
	grid-template-columns: auto auto auto;
	text-align: center;
	margin-top: 100px;
	margin-bottom: 100px;
}
	a {
		color: black;
			text-decoration: none}
.preguntas {
	text-align: center;
	font-size: 1rem;
	margin-bottom: 100px;
	line-height:40px;
}
.gdpr{
	height: 40px;
	background: black;
	color: white;
	text-align: center;
	font-size: 24px;
}

@media screen and (max-width: 768px){
	intro {
		grid-column: 1 / -1;
	}
	.contenedor .categoria {
		grid-column: 1 / -1;
	}
		}