@font-face {
    font-family: 'HelveticaExtNormal';
    src: url('HelveticaExtNormal/HelveticaExtNormal.eot');
    src: url('HelveticaExtNormal/HelveticaExtNormal.eot') format('embedded-opentype'),
    url('HelveticaExtNormal/HelveticaExtNormal.woff2') format('woff2'),
    url('HelveticaExtNormal/HelveticaExtNormal.woff') format('woff'),
    url('HelveticaExtNormal/HelveticaExtNormal.ttf') format('truetype'),
    url('HelveticaExtNormal/HelveticaExtNormal.svg#HelveticaExtNormal') format('svg');
}
@font-face {
    font-family: 'Helvetica';
    src: url('Helvetica/Helvetica.eot');
    src: url('Helvetica/Helvetica.eot') format('embedded-opentype'),
    url('Helvetica/Helvetica.woff2') format('woff2'),
    url('Helvetica/Helvetica.woff') format('woff'),
    url('Helvetica/Helvetica.ttf') format('truetype'),
    url('Helvetica/Helvetica.svg#Helvetica') format('svg');
}