#pdf-container {
  position: relative;
  display: inline-block;
}
.pdf-input {
  position: absolute;
  border: 1px solid #000;
  background-color: rgba(255, 255, 255, 0.8);
  font-size: 12px;
  text-align: center;
  padding: 0;
  box-sizing: border-box;
  font-family: sans-serif;
  color: #000;
}