#loading-page {
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: #000000a1;
  z-index: 999999;
  text-align: center;
  padding-top: 30px;
  visibility: hidden;
  opacity: 0;
  transition: all .3s;
}
#loading-page > .loading-page {
  position: relative;
  display: inline-block;
  width: auto;
  margin: 0 auto;
  background: #fff;
  padding: 30px 30px;
  border-radius: 5px;
  transition: all 200ms;
}
#loading-page.show {
  visibility: visible;
  opacity: 1;
}