@media print {
    .header {
        background-color: white;
    }

    #charlist {
        display: none;
    }

    #myBtn {
        display: none;
    }

    .char-bar {
        break-inside: avoid;
    }

    .entry_section {
        break-inside: avoid;
    }

    .pagebreak { page-break-before: always; } /* page-break-after works, as well */
}