.omikujibutton {
    border-radius: 16px;
    background-color: #204834;
    font-size: 200%;
    font-family: "ヒラギノ明朝 ProN W6", "HiraMinProN-W6", "HG明朝E", "游明朝", "YuMincho", "ＭＳ Ｐ明朝", "MS PMincho", "MS 明朝", serif;
    padding: 10px;
    text-decoration: none;
    color: white;
    position: absolute;
    top: 90%;
    left: 50%;
    transform: translateY(-50%) translateX(-50%);
    transition: .3s;
  }

.omikujibutton:hover {
  background: #1b8319;
}


  .img {
    position: absolute;
    top: 40%;
    left: 50%;
    transform: translateY(-50%) translateX(-50%);
  }

  img.preload{
    width: 0px;
    height: 0px;
    display:none;
  }

keyframes fadeIn { /*animation-nameで設定した値を書く*/
  0% {opacity: 0} /*アニメーション開始時は不透明度0%*/
  100% {opacity: 1} /*アニメーション終了時は不透明度100%*/
}