      transform: translateX(calc(122px - 36px)) rotate(0);
      }

      50% {
        transform: translateX(calc(122px - 36px)) rotate(180deg);
      }

      80% {
        transform: translateX(0) rotate(180deg);
      }

      100% {
        transform: translateX(0) rotate(360deg);
      }
    }

    .btn-down {
      position: absolute;
      top: calc(50vh - 280px);
      text-align: center;
      border-radius: 4px;
      cursor: pointer;
      left: calc(50vw - 87px);
      width: 122px;
      line-