html,
body {
  margin: 0;
  padding: 0;
  text-align: center;
}

.turn {
  display: none;
  margin-top: 2em;
  text-align: center;
  width: 100%;
}

@media screen and (min-width: 320px) and (max-width: 1024px) and (orientation: portrait) {
  .turn {
    display: block;
  }
}