@font-face {
  font-family: 'IBM Plex Serif';
  font-style: italic;
  font-weight: 300;
  src: url(https://fonts.gstatic.com/s/ibmplexserif/v20/jizGREVNn1dOx-zrZ2X3pZvkTiUa454xm1npiA.ttf) format('truetype');
}
@font-face {
  font-family: 'IBM Plex Serif';
  font-style: normal;
  font-weight: 100;
  src: url(https://fonts.gstatic.com/s/ibmplexserif/v20/jizBREVNn1dOx-zrZ2X3pZvkTi186zUTiw.ttf) format('truetype');
}
@font-face {
  font-family: 'IBM Plex Serif';
  font-style: normal;
  font-weight: 300;
  src: url(https://fonts.gstatic.com/s/ibmplexserif/v20/jizAREVNn1dOx-zrZ2X3pZvkTi20-SI0q14.ttf) format('truetype');
}
@font-face {
  font-family: 'Source Serif 4';
  font-style: normal;
  font-weight: 300;
  src: url(https://fonts.gstatic.com/s/sourceserif4/v14/vEFy2_tTDB4M7-auWDN0ahZJW3IX2ih5nk3AucvUHf6OAVIJmeUDygwjiklqnhtdCw.ttf) format('truetype');
}