:root {

    --fond: #ffffff;
    --taille-pensee: 110px;
    --largeur-maximale: 1800px;
}


body {

    background: var(--fond);
    overflow-x: hidden;
    font-family:
        Helvetica,
        Arial,
        sans-serif;

    opacity: 1;
    transition: opacity .35s ease;
}


main {

    width: min(95vw, var(--largeur-maximale));
    margin: auto;
}


body.fade {

    opacity: 0;
}