h1  {
    font-weight: bold;
    font-size: 60px;
}


@media screen and (max-width: 567px) {
    h1  {
        font-weight: bold;
        font-size: 45px;
    }
}

h2  {
    font-size: 35px;
}

.titre-section {
    font-size: 50px;
    font-weight: bold;
    text-align: center;
    margin: 15px;
}