@font-face {
  font-family: 'Fira Mono';
  font-style: normal;
  font-weight: 400;
  src: local('Fira Mono Regular'), local('FiraMono-Regular'), url(https://web-archive.nli.org.il/National_Library/20161226072333oe_/https://fonts.gstatic.com/s/firamono/v5/SlRWfq1zeqXiYWAN-lnG-qCWcynf_cDxXwCLxiixG1c.ttf) format('truetype');
}