body {
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #f0f0f0;
}

#book {
    width: 100%;
    max-width: 600px;
    height: auto;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
    margin: 20px auto;
    overflow: hidden;
}

.page {
    background-color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.page img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}