@font-face {
  font-family: 'PT Serif';
  font-style: italic;
  font-weight: 400;
  src: url(https://apo-billenkamp.de/gstatic/s/ptserif/v18/EJRTQgYoZZY2vCFuvAFT_rO1dw.ttf) format('truetype');
}