@font-face {
    font-family: 'Helvetica-Bold';
    src: url('helvetica_bold.otf') format('otf');
    font-weight: bold;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'Helvetica';
    src: url('helvetica_regular.otf') format('otf');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}