@font-face {
    font-family: 'black';
    src: url(cairo/Cairo-Black.ttf);
  }
   
@font-face {
    font-family: 'light';
    src: url(cairo/Cairo-Light.ttf);
  }
 
@font-face {
    font-family: 'Medium';
    src: url(cairo/Cairo-Medium.ttf);
  }
 
 
@font-face {
    font-family: 'bold';
    src: url(cairo/Cairo-ExtraBold.ttf);
  }