#loading {
    display: none;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    position: fixed;
    display: block;
    opacity: 0.7;
    background-color: #fff;
    z-index: 99;
text-align: center;
}

#loading-image {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 100;
}