.main-loader {
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: #ffffff;
  z-index: 100;
  opacity: 1;
  -webkit-transition: opacity 0.2s ease;
  -o-transition: opacity 0.2s ease;
  -moz-transition: opacity 0.2s ease;
  transition: opacity 0.2s ease;
  pointer-events: all;
}
.main-loader.hide {
  pointer-events: none;
  opacity: 0;
}