@media print {
    body {
        -webkit-print-color-adjust: exact !important;
        color-adjust: exact !important;
    }

    .site-header, 
    .footer, 
    aside.page-right-col, 
    aside.page-left-col, 
    .widget, 
    .timetable-options,
    .timetable-day-selector 
    {
        display: none;
    }

    .timetable-sessions
    {
        display: block !important;
        margin-bottom: 3rem;
        width: 100%;
    }

    .timetable-sessions tr {
        width: 100%;
    }

    .timetable-sessions thead tr:first-child th {
        background-color: gray;
        color: white;
        padding-top: 0.5rem;
        padding-bottom: 0.5rem;
    }
}