/* Ensure the parent containers don't squash the PDF */
.pdf-container {
    position: relative;
    width: 100%;
    /* Adjust 80vh (80% of viewport height) depending on your header size */
    height: 80vh; 
    overflow: hidden;
    margin-bottom: 20px;
}

.pdf-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}