@font-face {
  font-family: 'Petrona';
  font-style: normal;
  font-weight: 100;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/petrona/v36/mtGl4_NXL7bZo9XXq35wRLONYyOjFk6NsARB.ttf) format('truetype');
}