@font-face {
  font-family: 'Fira Sans';
  src: url('fonts/fira-sans-regular.woff2') format('woff2'),
       url('fonts/fira-sans-regular.woff') format('woff'),
       url('fonts/fira-sans-regular.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
}