@media (min-width: 1100px) {
  #box-3 {
    height: 100vh;
    width: 100%;
    background-image: url(20151103_SecretSpotGold300-15-1024x683.jpg);
    background-size: cover;
    display: table;
    background-attachment: fixed;
  }
}

h1 {
  font-family: arial black;
  font-size: 32px;
  color: white;
  margin: 0px;
  text-align: center;
  display: table-cell;
}