.flipbook {
    margin: 20px auto;
    background: #ddd;
}

.flipbook .page {
    background: white;
    box-shadow: 0 0 12px rgba(0,0,0,0.3);
    overflow: hidden;
}

.flipbook .page canvas {
    width: 100%;
    height: 100%;
    display: block;
}