body{
  color: white;
  background-color: black;
}

#loading
{
 width:500px;
 height:500px;
 margin:0 auto;
 position:absolute;
 left:50%;
 top:50%;
 margin-left:-250px;
 margin-top:-250px;
 z-index: -1;
 text-align: center;
 vertical-align: middle;
}

#loading p
{
  font-family: "Arial", sans-serif;
  font-size: 15pt;
  margin-top: 50%;
  margin-bottom: 50%;
  animation-name: fading;
  animation-duration: 4s;
  animation-iteration-count: infinite;
}

@keyframes fading {
0%{
  opacity: 1;
}
50%{
  opacity: 0;
}
100%{
  opacity: 1;
}
}