/* ローディング画面の背景 */
.loading {
  position: fixed;
  width: 100vw;
  height: 100vh;
  top: 0px;
  left: 0px;
  background: #000;
  z-index: 9999;
}

/* アニメーション */
.animation {
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  color: #fff;
  -webkit-animation: loadinganimation 1500ms ease-out forwards infinite;
  animation: loadinganimation 1500ms ease-out forwards infinite;
}
@keyframes loadinganimation {
  from,to {
		opacity: 0;
  }
  50% {
		opacity: .5;
  }
}