@font-face {
  font-family: FN;
  src: url('ku/ir_sans.ttf') format('woff');
}

@font-face {
  font-family: FB;
  src: url('ku/ir_sans_medium.ttf') format('woff');
}

@font-face {
  font-family: FP;
  src: url('ku/ir_sans.ttf') format('woff'); 
}