@font-face { font-family: 'Fira Code'; font-style: normal; font-weight: 400; font-display: swap;
  src: url('fira-400.ttf') format('truetype'); }
@font-face { font-family: 'Fira Code'; font-style: normal; font-weight: 500; font-display: swap;
  src: url('fira-500.ttf') format('truetype'); }