body {
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    background-color: #f0f0f0;
    font-family: Arial, sans-serif;
}

.container {
    text-align: center;
}

.face-container {
    position: relative;
    width: 200px;
    height: 200px;
    margin: 20px auto;
}

#friend-face {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    transition: transform 0.1s ease;
}

button {
    padding: 10px 20px;
    font-size: 18px;
    color: white;
    background-color: #007bff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: #0056b3;
}

.qr-code img {
    margin-top: 20px;
    width: 150px;
    height: 150px;
}