@font-face {
  font-family: 'KleinSlabserif';
  font-style: normal;
  font-weight: 300;
  font-display: swap;
  src: url(https://cdn.forumfree.it/fonts/kleinslabserif/kleinslabserif_300.ttf) format('truetype');
}
@font-face {
  font-family: 'KleinSlabserif';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(https://cdn.forumfree.it/fonts/kleinslabserif/kleinslabserif_500.ttf) format('truetype');
}
@font-face {
  font-family: 'KleinSlabserif';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url(https://cdn.forumfree.it/fonts/kleinslabserif/kleinslabserif_700.ttf) format('truetype');
}
@font-face {
  font-family: 'KleinSlabserif';
  font-style: normal;
  font-weight: 900;
  font-display: swap;
  src: url(https://cdn.forumfree.it/fonts/kleinslabserif/kleinslabserif_900.ttf) format('truetype');
}