.printme {
    display: none;
}

@media print {

    header, footer, aside, nav, form, iframe, .menu, .hero, .adslot {
        display: none;
    }

    button {
        display:none;
    }


    .no-printme {
        display: none;
    }

    .printme {
        display: block;
    }

    body {
        margin: 0;
        color: #000;
        background-color: #336699;
    }

    .labelPrint {
        color: red;
        font-size: 22px;
        margin-top: 6cm;
        column-width: 17em;
        column-gap: 3em;
    }

    main::after {
        content: "Copyright Terna.it";
        display: block;
        text-align: center;
    }

    a[href*='//']:after {
        content: " (" attr(href) ") ";
        color: red
    }
}