div#preloader {
  position: fixed;
  left: 0;
  top: 0;
  z-index: 99999;
  width: 100%;
  height: 100%;
  overflow: visible;
  background: #fff url('/img/preload.gif');
  background-position: center;
  background-size: 25% auto;
  background-repeat: no-repeat;
}