@font-face {
  font-family: 'Libertinus Serif';
  font-style: normal;
  font-weight: 600;
  src: url(https://fonts.gstatic.com/s/libertinusserif/v1/RLpjK4bw7KinajYBg0RTTwCLF5Bep3ErdHs.ttf) format('truetype');
}