@font-face {
  font-family: 'avenirblack';
  src: url('avenir-black-webfont.woff2') format('woff2'),
       url('avenir-black-webfont.woff') format('woff');
  font-weight: normal;
  font-style: normal;
}
@font-face {
  font-family: 'avenirmedium';
  src: url('avenir-medium-webfont.woff2') format('woff2'),
       url('avenir-medium-webfont.woff') format('woff');
  font-weight: normal;
  font-style: normal;
}
@font-face {
  font-family:"avenirbook";
  src:url("Avenir-Book.woff2") format("woff2"),
      url("Avenir-Book.woff") format("woff");
      font-weight: normal;
      font-style: normal;
}