body {
  background-color: #191717;
}

#deviceReady div {
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  position: absolute;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  -webkit-transition: opacity 1s ease-in-out;
  -moz-transition: opacity 1s ease-in-out;
  -o-transition: opacity 1s ease-in-out;
  transition: opacity 1s ease-in-out;
  opacity: 0;
  -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";
  filter: alpha(opacity=0);
}

#deviceReady div.opaque {
  opacity: 1;
  -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)";
  filter: alpha(opacity=1);
}