@font-face {
   font-family: "Avenir Black";
   src: url("fonts/Avenir-Black.woff2") format("woff2"), url("fonts/Avenir-Black.ttf") format("truetype");
   font-weight: normal;
   font-style: normal;
}
@font-face {
   font-family: "Avenir Heavy";
   src: url("fonts/Avenir-Heavy.ttf") format("truetype");
   font-weight: normal;
   font-style: normal;
}