body{
  background: #000;
}
.loading-div{
  position: fixed;
  width: 100%;
  height: 100vh;
  left: 0;
  top: 0;
  background: rgba(0,0,0,0.7);
  z-index: 99999;
  color: #fff;
  line-height: 100vh;
  text-align: center;
  display: none;
  opacity: 0;
  transition: 0.5s all;
}
.loading-div.show{
  opacity: 1;
  transition: 0.5s all;
}

.loading-div.active{
  display: inline;
}

.loading-div>div{
  position: relative;
  display: inline-block;
  vertical-align: middle;
  width: 100px;
  height: 60px;
  line-height: 60px;
  /* background: #fff; */
  text-align: center;
}
@keyframes loading {
  0% {
    transform: scale(1) skewX(-40deg);
  }
  15% {
    transform: scale(1.3) skewX(-40deg);
    background: #ff6400;
  }
  30% {
    transform: scale(1) skewX(-40deg);
  }
  100% {
    transform: scale(1) skewX(-40deg);
  }
}

.loading-div>div>span{
  position: relative;
  display: inline-block;
  vertical-align: middle;
  width: 20px;
  height: 20px;
  background: #fff;
  transform-origin: center;
  transform: scale(1) skewX(-40deg);
  margin: 0 4px;
  animation-name: loading;
  animation-duration: 1.5s;
  animation-iteration-count: infinite;
}

.loading-div>div>span:nth-child(1){
  animation-delay: 0s;
}
.loading-div>div>span:nth-child(2){
  animation-delay: 0.2s;
}
.loading-div>div>span:nth-child(3){
  animation-delay: 0.4s;
}