/* bold */
@font-face {
    font-family: 'Avenir';
    src: url('AvenirLTStd-Black.otf') format("opentype");
    font-weight: 600;
}

/* regular */
@font-face {
    font-family: 'Avenir';
    src: url('AvenirLTStd-Book.otf') format("opentype");
    font-weight: 500;
}