@font-face { 
  font-family:Arial; 
  src: url('../img/Arial.ttf'); 
} 
@font-face { 
  font-family:sfui;  
  src: url('../img/SF-UI-Display-Medium.ttf'); 
} 
@font-face { 
  font-family:Helvet;  
  src: url('../img/HelveticaNeueLTPro-Roman.ttf'); 
}