haldis/app/static/css/print.css

@media print {
    nav, form, footer, .btn, #form, #debts {
        display: none;
    }
    #items {
        display: flex;
    }
    #items-list {
        order: 2;
    }
    #items-ordered {
        order: 1;
        margin-right: 50px;
    }
}