div {
    display: flex;
    align-items: center;
    flex-direction: column;
}
body {
    background-image: url("https://lh6.googleusercontent.com/-OQxiytXVFjN-Tz-JnXGfCRp19MGxRVGBLPb15O-mA2PZLB78iJVvzRtrrku8CW-WxW59Ago1CoznKUVd1s-4pQ=w16383");
  }