body {
  background-color: gainsboro;
  margin: 0;
}

#enlace {
  height: 100vh;
  display: grid;
  place-items: center;
}

#enlace a {
  font-family: Arial, Helvetica, sans-serif;
  font-size: medium;
  font-weight: 700;
  color: darkblue;
  text-decoration: none;
}

#enlace a:hover {
  color: blue;
}