@media (max-width: 320px) {
    header .container img.logo {
        width: 150px;
    }

    .section-hero .content .bloc {
        padding: 50px 30px 30px 30px;
    }
    .section-hero .content .bloc::before {
        width: 80px;
        height: 80px;
        top: -35px;
        left: 50%;
        margin-left: -40px;
    }

}