body {
    font-family: Arial, sans-serif;
}

#drop-area {
    border: 2px dashed #ccc;
    text-align: center;
    padding: 20px;
    cursor: pointer;
}

#progress-bar {
    margin-top: 20px;
    height: 20px;
    background-color: #eee;
    border: 1px solid #ccc;
    overflow: hidden;
}

#progress {
    width: 0;
    height: 100%;
    background-color: #4caf50;
}