body {
    background-image: url('https://png.pngtree.com/png-clipart/20201224/ourmid/pngtree-original-chair-vector-material-png-image_2608947.jpg');
    background-size: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 95vh
}

button {
    scale: 10;
    border: 50px;
}