@font-face {
  font-family: Istok-Regular;
  src: url(Istok-Regular.ttf);
}
body { 
font-family: Istok-Regular,arial,sans-serif;
font-weight: 400;
font-style: normal;
line-height: 1.20;
}
.center-hv {
 position: absolute;
  left: 50%;
  top: 50%;
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}
.textblock { 
text-align: center;
margin-top: 10px; 
}
.pictureblock {
width: 90vw;
max-width: 520px;
text-align: center;
}