main .histoire {
    display: flex;
    align-items: center;
    background-repeat: no-repeat;
    background-size: 4rem;
    background-position-y: center;
    min-height: 4rem;
    padding: 0 0 0 4.3rem;
    background-image: url(icone_histoire.png);
}

main a {
    color : #000;
    text-decoration: none;
    padding: 0.2em;
    border-radius: 0.4em;
    text-shadow: 0.04em 0.04em 0.1em #555779;
}

main a:hover {
    color: #191B32;
    background-color: #d8daee;
}