.main {
    padding-top: 30px;
    padding-bottom: 50px;
}

h2 {
    font-family: "Legend", Helvetica, Arial, serif;
    font-size: 50px;
    margin: 0;
    color: #171717;
}

.subtitle {
    margin-bottom: 20px;
}

.cartes-img {
    width: 100%;
    margin-bottom: 40px;
}

@media screen and (max-width: 768px) {
    h2 {
        font-size: 30px;
    }

    a.btn {
        font-size: 20px;
        width: 250px;
    }
}