body{
    background-image: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url(img/children.jpg);
    background-size: cover;
    filter: brightness();
    color: var(--site-bg);
}

#seleziona a{
    color: var(--site-bg);
    padding: 20px;
    display: block;
    border-radius: 30px;
    transition: 400ms;
}

#seleziona a:hover{
    transition: 400ms;
    color: var(--site-bg);
    background-color: var(--text-color);
}

@media(max-width: 878px){
    body{
        background-size: contain;
    }
}