.jdih-pdf-viewer-container {
    border: 1px solid #0d6efd;
    border-radius: 8px;
    overflow: hidden;
    background: #e8f0fe;
    box-shadow: 0 2px 8px rgb(13 110 253 / 0.12);
}

.jdih-pdf-viewer-container iframe {
    display: block;
    width: 100% !important;
    height: 100% !important;
    border: 0;
}