.logo_conteneur {
    text-align: center;
}

.logo {
    width: 130px;
}

.menu_header {
    font-size: 19px;
    text-align: right;
}

#footer {
    background-color: white;
    color: black;
    padding: 15px;
    text-align: center;
    width: 100%;
    margin: 0;
}

#footer_page {
    background-color: white;
    color: black;
    padding: 15px;
    text-align: center;
    width: 100%;
    margin: 0;
    position: absolute;
    bottom: 0;
}

@media screen and (max-width: 991px) {
    .logo_conteneur {
        text-align: left;
    }

    .logo {
        width: 85px;
    }

    .menu_header {
        font-size: 16px;
        text-align: center;
    }
}