@font-face {
  font-family: 'Fira Mono';
  font-style: normal;
  font-weight: 500;
  font-display: optional;
  src: url(https://fonts.gstatic.com/l/font?kit=N0bS2SlFPv1weGeLZDto1d33meX1UaB7NwixcbkTXLECbuUwjfVYzBi5skiZTkTp0cFWPyeBL_CV&skey=9ab5808f9463dfb5&v=v16) format('truetype');
}