#loading {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100vw;
  height: 100vh;
  background-color: #E17E47;
  transition: all 1s;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 9999;
}
#loading.loaded {
  opacity: 0;
  visibility: hidden;
}

/* ローディングアニメーション */
.loader,
.loader:after {
  border-radius: 50%;
  width: 10em;
  height: 10em;
}
.loader {
    margin: 60px auto;
    font-size: 10px;
    position: relative;
    text-indent: -9999em;
    border-top: 1.1em solid rgba(255, 255, 255, 0.2);
    border-right: 1.1em solid rgba(255, 255, 255, 0.2);
    border-bottom: 1.1em solid rgba(255, 255, 255, 0.2);
    border-left: 1.1em solid #ffffff;
    -webkit-transform: translateZ(0);
    -ms-transform: translateZ(0);
    transform: translateZ(0);
    -webkit-animation: load8 1.1s infinite linear;
    animation: load8 1.1s infinite linear;
}

@-webkit-keyframes load8 {
    0% {
      -webkit-transform: rotate(0deg);
      transform: rotate(0deg);
    }
    100% {
      -webkit-transform: rotate(360deg);
      transform: rotate(360deg);
    }
  }
  @keyframes load8 {
    0% {
      -webkit-transform: rotate(0deg);
      transform: rotate(0deg);
    }
    100% {
      -webkit-transform: rotate(360deg);
      transform: rotate(360deg);
    }
  }