*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html,body{
    width:100%;
    height:100%;
    display: flex;
    justify-content: center;
    
}

#board{
    display: flex;
    justify-content:center ;
    background-image: url(bg.png);
    background-size: cover;
}