@import url('https://fonts.googleapis.com/css2?family=Poppins&display=swap');
.timeline{
  width: 100%;
  max-width: 800px;
  margin: auto;
  background-color:#fff;
  color:#000;
}
.timeline ul{
  list-style-type:none;
  border-left:2px solid #3c4043;
  padding:10px 5px;
}
.timeline ul li{
  padding:20px 20px;
  position:relative;
  cursor:pointer;
  transition:.5s;
}
.timeline ul li span{
  color:#013b72;
  padding:0px 0px;
  font-size: 22px; 
  font-weight: bold;
  text-align:justify;
  margin-bottom: 5px;
}
.timeline ul li .content p{
  padding:0px 0px 0px 0px;
  font-size:16px;
  text-align:justify;
}
.timeline ul li .content p.year{
  padding:0px 0px 0px 0px;
  font-size:14px;
  font-style: italic;
}
.timeline ul li .content p.abstract{
  padding:0px 0px 0px 0px;
  font-size:12px;
  font-style: italic;
}
.timeline ul li:before{
  position:absolute;
  content:'';
  width:14px;
  height:14px;
  background-color:#013b72;
  border-radius:50%;
  left: -6px;
  top: 30px;
  transform: translateX(-50%);
  transition:.5s;
}

.pdf-viewer {
  width: 100%;
  min-height: 395px;
  max-height: 100vh;
  border: none;
}

@media (max-width: 800px) {
  .pdf-viewer {
    min-height: 90vh;
  }
}