h1 {
    font-size: 18px;
    color: #333;
    margin-bottom: 5px;
}

p {
    font-size: 14px;
    color: #666;
}

.qr-code img {
    margin-top: 20px;
    max-width: 240px;
    height: auto;
}

header {
    margin-top: 20px;
    margin-bottom: 20px;
}

header h1 {
    font-size: 20px;
    margin-bottom: 10px;
}

header h2 {
    font-size: 18px;
    margin-bottom: 10px;
}

header h3 {
    font-size: 16px;
    margin-bottom: 10px;
}

header h3 em {
    font-style: normal;
    color: #af1111;
}