#spinner {
  position: fixed;
  background-color: #fff;
  display: -webkit-box;
  display: flex;
  -webkit-box-align: center;
  align-items: center;
  -webkit-box-pack: center;
  justify-content: center;
  opacity: 1;
  visibility: visible;
  z-index: 9999;
  -webkit-transition: opacity 0.25s;
  transition: opacity 0.25s;
}
#spinner.show {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}