@font-face {
    font-family: 'Helvetica';
    src: url(../fonts/helvetica-neue-regular.ttf);
    font-weight: normal;
}

@font-face {
    font-family: 'Helvetica';
    src: url(../fonts/helvetica-neue-medium.ttf);
    font-weight: 500;
}

@font-face {
    font-family: 'Helvetica';
    src: url(../fonts/helvetica-neue-bold.ttf);
    font-weight: 700;
}