.preloader {
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 999999;
  background-color: #ffffff;
  background-position: center center;
  background-repeat: no-repeat;
  background-image: url(../images/icons/preloader.gif);
  opacity: 1;
}