@media print {
    body * {
        visibility: hidden;
    }

    .btn {
        display: none;
    }

    .SeccionAimprimir, .SeccionAimprimir * {
        visibility: visible;
    }

    .SeccionAimprimir {
        position: absolute;
        left: 0;
        top: 0;
    }

    button, input[type="button"], input[type="submit"] {
        display: none;
    }


    /*@page {
        size: 7.5cm 20cm; 
    }*/
}