.elementos__centrar {
  text-align: center;
}

.index__container {
  display: -ms-grid;
  display: grid;
  -ms-grid-columns: auto auto auto;
      grid-template-columns: auto auto auto;
  grid-column-gap: 20px;
  -ms-grid-rows: 250px;
      grid-template-rows: 250px;
  padding: 20px;
  margin: 50px;
  -webkit-box-pack: space-evenly;
      -ms-flex-pack: space-evenly;
          justify-content: space-evenly;
}

.index__textos {
  text-align: center;
  padding-bottom: 10px;
}

.vuelos__container {
  display: -ms-grid;
  display: grid;
  -ms-grid-columns: auto auto auto;
      grid-template-columns: auto auto auto;
  grid-column-gap: 20px;
  -ms-grid-rows: 250px;
      grid-template-rows: 250px;
  padding: 20px;
  margin: 70px;
  -webkit-box-pack: space-evenly;
      -ms-flex-pack: space-evenly;
          justify-content: space-evenly;
}

.vuelos__textos {
  text-align: center;
  padding-bottom: 10px;
}