.pdfread-container {
  width: 100%;
  margin: 15px 0;
  border: 1px solid #ddd;
  border-radius: 4px;
  overflow: hidden;
  background: #f8f9fa;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.pdfread-container .pdfread-iframe {
  width: 100%;
  border: 0;
  display: block;
  min-height: 400px;
}

@media (max-width: 768px) {
  .pdfread-container {
    margin: 10px 0;
    border-radius: 3px;
  }
  .pdfread-container .pdfread-iframe {
    min-height: 350px;
  }
}