#pdf-canvas {
    border: 1px solid #ccc;
    margin-top: 10px;
    max-width: 100%;
}

#image-to-crop {
    margin-top: 20px;
    max-width: 100%;
    max-height: 400px;
}

#crop-btn {
    margin-top: 10px;
    padding: 10px 20px;
    background: black;
    color: white;
    border: none;
    cursor: pointer;
}