* {
    padding: 0;
    margin: 0;
    font-family: arial;
}

body {
    display: flex;
    justify-content: center;
    flex-direction: column;
}

.all {
    display: flex;
    align-items: center;
    padding: 0 30px;
}

.morpion {
    border: 1px solid #000;
    margin: 40px auto;
    width: 710px;
    height: 710px;

}

.ligne1, .ligne2, .ligne3 {
    display: flex;
    font-size: 10rem;
}

.case {
    /* background: aqua; */
    border: 10px solid #000;
    padding: 30px;
    width: 160px;
    height: 157px;
    display: flex;
    justify-content: center;
}

.btn {
    margin: auto;
}

.score1, .score2 {
    font-size: 15rem;
}