body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    text-align: center;
    padding: 50px;
}

h1 {
    color: #333;
    font-size: 2em;
}

php {
    font-size: 1.2em;
    font-weight: bold;
    color: #007bff;
    display: block;
    margin-top: 20px;
}