body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 800px;
    margin: 50px auto;
    text-align: center;
}

h1 {
    color: #333;
}

.btn {
    background-color: #007bff;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    margin: 10px;
}

.btn:hover {
    background-color: #0056b3;
}

#videoElement {
    width: 100%;
    max-width: 600px;
    margin: 20px 0;
}

#cameraSelect {
    padding: 5px;
    margin: 10px;
}

#capturedImage {
    margin-top: 20px;
}

#hfResult {
    text-align: left;
    background: #fff;
    padding: 10px;
    border-radius: 5px;
    margin-top: 20px;
    max-height: 300px;
    overflow-y: auto;
}