@font-face {
    font-family: 'Avenir';
    font-style: normal;
    src: url('Avenir_LT_Std_Book.otf');
    font-weight: 400;
}
@font-face {
    font-family: 'Avenir';
    font-style: italic;
    src: url('Avenir_LT_Std_Book_Oblique.otf');
    font-weight: 400;
}
@font-face {
    font-family: 'Avenir';
    font-style: normal;
    src: url('Avenir_LT_Std_Heavy.otf');
    font-weight: 800;
}
@font-face {
    font-family: 'Avenir';
    font-style: italic;
    src: url('Avenir_LT_Std_Heavy_Oblique.otf');
    font-weight: 800;
}