.pdf-slider-container {
    text-align: center;
    max-width: 100%;
}
#pdf-controls {
    margin: 10px;
}
#pdf-controls button {
    margin: 0 5px;
    padding: 6px 12px;
    font-size: 18px;
}
#pdf-canvas {
    border: 1px solid #ccc;
    margin-top: 10px;
    max-width: 100%;
    height: auto;
}
#page-info {
    margin-top: 8px;
    font-size: 14px;
    color: #333;
}