body {
    margin: auto;
    display: flex;
    flex-wrap: wrap;
}

header {
    flex-basis: 100%;
    height: 400px;
    box-sizing: content-box;
    margin: 0px;
    background-image: url('desktop/image-header.jpg');
    background-position: center;
    background-size: cover;
    padding: 20px;
}

header label {
    font-size: x-large;
    color: white;
    font-weight: bold;
    font-family: Arial, Helvetica, sans-serif;
}

header nav {
    text-align: right;
    position: relative;
    bottom: 35px;
}

header nav ul li {
    list-style-type: none;
    display: inline-block;
    padding-right: 30px;
}

header nav ul li a {
    text-decoration: none;
    color: white;
    font-family: Arial, Helvetica, sans-serif;
    font-size: medium;
}

header nav ul li a:hover {
    color: #6c757d;
    font-weight: bold;
}

header nav ul li .contact {
    background-color: white;
    color: black;
    border-radius: 15px;
    padding: 7px;
    text-transform: uppercase;
    font-size: small;
    font-family: 'Times New Roman', Times, serif;
    font-weight: bold;
}

.contact:hover {
    color: white;
    background-color: #6c757d;
}

.navigation_mobile {
    background-color: rgba(133, 122, 122, 0.5);
    width: 100%;
    height: 100%;
    position: fixed;
    z-index: 1;
    left: -100%;
    bottom: 0px;
    padding: 5px;
    transition: ease-in 0.5s;
    display: none;
}

.open_menu {
    display: none;
}

.close_menu {
    float: right;
    padding: 20px;
    font-size: xx-large;
    text-decoration: none;
    color: white;
}

.close_menu:hover {
    font-weight: bold;
    font-size: larger;
    transition: 0.5s;
}

.navigation_mobile ul {
    position: relative;
    right: 30px;
}

.navigation_mobile ul li {
    list-style-type: none;
    display: block;
    padding-top: 30px;
}

.navigation_mobile ul li a {
    text-decoration: none;
    color: white;
    transition: ease-in-out 0.5s;
}

.navigation_mobile ul li a:hover {
    letter-spacing: 10px;
    transition: ease-in-out 0.5s;
}

.navigation_mobile_effet_js {
    left: -0%;
    transition: 0.5s;
}

header h1 {
    color: white;
    text-align: right;
    padding: 0;
    text-align: center;
    text-transform: uppercase;
}

header p {
    text-align: center;
}

.un {
    flex-basis: 50%;
    padding-top: 50px;
    padding-bottom: 50px;
    text-align: center;
}

.deux {
    flex-basis: 50%;
    background-image: url('desktop/egg.jpg');
    background-position: center;
    background-size: cover;
}

.trois {
    flex-basis: 50%;
    background-image: url('desktop/calice_rose.jpg');
    background-position: center;
    background-size: cover;
}

.quatre {
    flex-basis: 50%;
    padding-top: 50px;
    padding-bottom: 50px;
    text-align: center;
}

.cinq {
    flex-basis: 50%;
    background-image: url('desktop/image_pomme.jpg');
    background-position: center;
    background-size: cover;
    text-align: center;
    padding-top: 200px;
}

.six {
    flex-basis: 50%;
    background-image: url('desktop/image-photography.jpg');
    background-position: center;
    background-size: cover;
    text-align: center;
    padding-top: 200px;
}

.learn {
    text-decoration: underline;
    font-weight: bold;
    font-family: 'Times New Roman', Times, serif;
    text-decoration-color: #ffc107;
    font-size: 0.7em;
}

.learn1 {
    text-decoration: underline;
    font-weight: bold;
    font-family: 'Times New Roman', Times, serif;
    text-decoration-color: #dc3545;
    font-size: 0.7em;
}

.bloc_titre {
    flex-basis: 100%;
    text-align: center;
    padding: 50px;
}

.bloc_titre h2 {
    text-transform: uppercase;
    letter-spacing: 5px;
    color: grey;
}

content {
    flex-basis: 100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-evenly;
    margin-bottom: 20px;
}

article p {
    text-align: center;
    color: gray;
    font-weight: bold;
}

article p img {
    border-radius: 50%;
}

.nom {
    font-weight: bold;
    font-size: large;
    color: black;
    padding-top: 20px;
}

.bloc_de_quantre_fond {
    flex-basis: 100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.bloc_de_quantre_fond div {
    flex-basis: 25%;
}

.font1 {
    flex-basis: 25%;
    height: 270px;
    background-image: url("desktop/footer_milk.jpg");
    background-position: center;
    background-size: cover;
}

.font2 {
    flex-basis: 25%;
    height: 270px;
    background-image: url("desktop/footer_orange.jpg");
    background-position: center;
    background-size: cover;
}

.font3 {
    flex-basis: 25%;
    height: 270px;
    background-image: url("desktop/footer_cone.jpg");
    background-position: center;
    background-size: cover;
}

.font4 {
    flex-basis: 25%;
    height: 270px;
    background-image: url("desktop/footer_sugger.jpg");
    background-position: center;
    background-size: cover;
}

footer {
    flex: 100%;
    text-align: center;
    padding: 40px;
    background-color: #20c997;
}

footer ul {
    list-style-type: none;
}

footer li {
    display: inline-block;
    list-style-type: none;
}

footer li a {
    text-decoration: none;
    color: #6c757d;
    padding: 20px;
    font-weight: bold;
}

footer p {
    padding-top: 30px;
}

footer p svg {
    padding: 10px;
}

@media screen and (max-width: 768px) {

    /*  les codes css pour gérer l'affichages sur le mobile ou téléphone  */
    header {
        padding: auto;
    }

    header .navigation {
        display: none;
    }

    .open_menu {
        display: block;
        float: right;
        /*  position: relative;
        bottom: 70px;*/
    }

    .open_menu:hover {
        border: 2px solid white;
        border-radius: 10px;
        padding: 5px;
        transition: ease-in 0.5s;
    }

    .navigation_mobile {
        display: block;
    }

    .deux {
        flex-basis: 100%;
        order: 1;
        height: 300px;
    }

    .un {
        flex-basis: 100%;
        order: 2;
        text-align: center;
    }

    .trois {
        flex-basis: 100%;
        order: 3;
        height: 300px;
    }

    .quatre {
        flex-basis: 100%;
        order: 4;
        text-align: center;
    }

    .cinq {
        flex-basis: 100%;
        order: 5;
    }

    .six {
        flex-basis: 100%;
        order: 6;
    }

    .bloc_titre {
        flex-basis: 100%;
        order: 7;
    }

    content {
        order: 8;
    }

    .client1 {
        flex-basis: 100%;
    }

    .client2 {
        flex-basis: 100%;
    }

    .client3 {
        flex-basis: 100%;
    }

    .bloc_de_quantre_fond {
        order: 9;
    }

    .font1 {
        flex-basis: 50%;
        order: 9;
    }

    .font2 {
        flex-basis: 50%;
        order: 10;
    }

    .font3 {
        flex-basis: 50%;
        order: 11;
    }

    .font4 {
        flex-basis: 50%;
        order: 12;
    }

    footer {
        order: 13;
    }

    footer ul li {
        padding: 0px;
        display: block;
        padding: 10px;
    }

    footer .reseaux_sociaux li {
        display: inline-block;
    }
}