body {
    margin: 0;
    font-family: Arial, sans-serif;
    text-align: center;
    background-color: #f5f5f5;
}

header {
    background-color: #333;
    color: white;
    padding: 50px 20px;
}

.content {
    padding: 40px 20px;
}

.btn {
    display: inline-block;
    padding: 15px 25px;
    background-color: #007BFF;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 20px;
}

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

footer {
    margin-top: 40px;
    padding: 20px;
    background-color: #222;
    color: white;
}