/* flipbook.css */
#flipbook {
    width: 800px;
    height: 500px;
    margin: 20px auto;
    box-shadow: 0px 0px 10px rgba(0,0,0,0.2);
}

#flipbook .page {
    background-color: #fff;
    border: 1px solid #ddd;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

#flipbook .page img {
    max-width: 100%;
    max-height: 100%;
}