html, body {
  height: 100%;
  margin: 0;
}

body {
  font-family: Montserrat, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  font-size: 1.3rem;
  color: #fff; /* meglio bianco su sfondo */
  
  justify-content: center;   /* orizzontale */
  align-items: center;       /* verticale */
  text-align: center;
}

h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: block;
}

a
{
  color: #fff;
}

.bg-aurora {
  background-image: url("img/auroraboreale.jpeg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}