html, body {
  height: 100%;
  margin: 0;
}

#docent {
  position: fixed;
  top: 0;
  right: 0;
  width: 300px;
  height: 100%;
  overflow-y: scroll;
}

#main {
  margin-right: 300px;
  height: 100%;
  overflow-y: hidden;
}

#pdf-viewer {
  width: 100%;
  border: 0;
}