.grid-container {
  min-height: 100vh;
  background-image: url('../imagenes/2.jpg');
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
}

.quadre-central {
  background-image: url('../imagenes/todos.jpg');
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  border: 6px solid #e3e3e3;
  min-height: 70vh;
  min-width: 70vw;
  margin-top: 8vh;
  margin-bottom: 8vh;
}

.redondas {
  padding-top: 40vh;
  color: #fff;
}