.center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  padding: 10px;
}
@media all and (orientation: portrait) { 
  body {
    background-image: url("IMG_E1341.jpg");
    background-color: #cccccc;
    background-size: cover;
    background-repeat: no-repeat;
  }
}
@media all and (orientation: landscape) { 
  body {
    background-image: url("DSC_1752.jpg");
    background-color: #cccccc;
    background-size: cover;
    background-repeat: no-repeat;
  }
}
h1 {
  text-align: center;
  color: antiquewhite;
  font-family: sans-serif;
}