@font-face {
    font-family: 'HelveticaNeue';
    src: url('font/HelveticaNeueRoman.otf') format('opentype');
}
@font-face {
    font-family: 'HelveticaNeue';
    font-weight:500;
    src: url('font/HelveticaNeueMedium.otf') format('opentype');
}
@font-face {
    font-family: 'HelveticaNeue';
    font-weight:bold;
    src: url('font/HelveticaNeueBold.otf') format('opentype');
}