@font-face {
    font-family: 'HelveticaBlack';
    src: url('fonts/HelveticaBlack.eot');
    src: url('fonts/HelveticaBlack.eot') format('embedded-opentype'),
         url('fonts/HelveticaBlack.woff2') format('woff2'),
         url('fonts/HelveticaBlack.woff') format('woff'),
         url('fonts/HelveticaBlack.ttf') format('truetype'),
         url('fonts/HelveticaBlack.svg#HelveticaBlack') format('svg');
    font-weight: 900;
    font-style: normal;
}