html, body {
    position: fixed;
    width: 100%;
    height: 100%;
    padding: 0;
    margin: 0;
    top: 0;
    bottom: 0;
    left: 0;
    right:0;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgb(34, 35, 35);
  }

#art{
    display: block;
    margin: auto;
    max-width: 95%;
    max-height: 95%;
}