@font-face {
  font-family: 'AvenirLTStd-Black';
  src: url('AvenirLTStd-Black.otf');     
  font-style:   normal;
}

@font-face {
  font-family: 'AvenirLTStd-Heavy';
  src: url('AvenirLTStd-Heavy.otf');     
  font-style:   normal;
  font-weight:  900;
}


@font-face {
  font-family: 'AvenirLTStd-Light';
  src: url('AvenirLTStd-Light.eot'); /* IE9 Compat Modes */
  src: url('AvenirLTStd-Light.eot?#iefix') format('embedded-opentype'), /* IE6-IE8 */
       url('AvenirLTStd-Light.woff') format('woff'), /* Modern Browsers */
       url('AvenirLTStd-Light.ttf')  format('truetype'), /* Safari, Android, iOS */
  font-style:   normal;
}

@font-face {
  font-family: 'AvenirLTStd-Book';
  src: url('AvenirLTStd-Book.otf');   
  font-style:   normal;
}