@media screen and (max-width: 1600px) {
    .span-accueil {
        font-size: 25px;
    }
}

@media screen and (max-width: 800px) {
    .header .titre {
        position: absolute;
        font-size: 37px;
        right: 23px;
    }

    .span-accueil {
        font-size: 20px;
    }

    .header .ul-user {
        right: 9px;
        top: 65px;
    }

    .titre-station {
        font-size: 22px;
        margin: 0 18%;
    }

    .sav {
        top: 70px;
    }
}

@media screen and (max-width: 600px) {
    .span-accueil {
        font-size: 20px;
    }
}