.page {
  width: 100vw;
  height: 100vh;
  position: relative;

  .bg {
    // width: 100%;
    height: 100%;
    display: block;
    margin:0 auto;
  }

  .btn {
    position: fixed;
    width: 100%;
    bottom: 0;
    left: 0;
    border-radius: 0;
    color: white;
    height: 100px;
    line-height: 100px;
    font-size: 36px;
    letter-spacing: 6px;
  }
}