.preloader {
  position: fixed;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  /* фоновый цвет */
  background: #e0e0e0;
  z-index: 1001;
}

.preloader__image {
  position: relative;
  top: 50%;
  left: 50%;
  width: 40px;
  height: 40px;
  margin-top: -35px;
  margin-left: -35px;
  text-align: center;
  animation: preloader-rotate 2s infinite linear;
}

@keyframes preloader-rotate {
  100% {
    transform: rotate(360deg);
  }
}

.loaded_hiding .preloader {
  transition: 0.3s opacity;
  opacity: 0;
}

.loaded .preloader {
  display: none;
}