@import url('https://fonts.googleapis.com/css2?family=GFS+Didot&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,700;1,400&display=swap');

/* Then use it like this: */
body {
  font-family: 'GFS Didot', 'Playfair Display', serif;
}