.preloader {
    position: fixed;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    background: #fff;
    z-index: 1001;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
  }
  .loaded_hiding {overflow: hidden;}
  .loaded_hiding .preloader {
    transition: 0.3s opacity;
    opacity: 0;
  }
  
  .loaded .preloader {
    display: none;
  }

.preloader img {max-width: 120px; min-width: 120px; display: block; animation: preloader 1s infinite ease;}
@media screen and (max-width:540px){
  .preloader img {max-width: 80px; min-width: 80px;}
}
@keyframes preloader {
  0% {
  opacity: .4;
  }

  50% {
    opacity: 1;
  }
  100% {
    opacity: .4;
  }
}