#loading {
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  position: fixed;
  display: block;
  opacity: 0.3;
  background-color: #2b2c2f;
  z-index: 9999;
  text-align: center;
}

#loading-image {
  position: absolute;
  top: calc(50% - 194px);
  left: calc(50% - 135px);
  z-index: 100;
}