@font-face {
    font-family: 'AvenirLTStd55Roman';
    src: url('avenirltstd-roman.eot');
    src: url('avenirltstd-roman.eot') format('embedded-opentype'),
         url('avenirltstd-roman.woff') format('woff'),
         url('avenirltstd-roman.ttf') format('truetype'),
         url('avenirltstd-roman.svg#AvenirLTStd55Roman') format('svg');
}