body {
    text-align: center;
}

#réals-centrer {
    display: flex;
    justify-content: space-around;
}

#bouton1 {
    color: blue;
    text-decoration: none;
}

#imgcontour {
    width: 317px;
    height: 156px;
    margin-top: 10px;
    margin-left: 25px;
    margin-right: 25px;
    display: flex;
    border: 0.175rem solid;
    color: black;
}