body{
    background:#f2f2f2;
    font-family:Arial;
    text-align:center;
    padding:20px;
}

.main{
    width:100%;
}

input{
    padding:10px;
    width:150px;

}

button{
    padding:10px;
    margin-left:5px;
    cursor:pointer;
}

#solutions{
    margin-top:30px;
    display:flex;
    flex-wrap:wrap;
    justify-content:center;
    gap:20px;
}

.board{
    display:grid;
    border:1px solid black;
}

.cell{
    width:50px;
    height:50px;
    display:flex;
    justify-content:center;
    align-items:center;
    font-size:30px;
}

.white{
    background:white;
}

.black{
    background:lightblue;
}