body {
    font-family: Arial, sans-serif;
    background-color: #ffffff;
    color: #333333;
    margin: 0;
    padding: 0;
}

header {
    background-color: #007BFF;
    color: #ffffff;
    padding: 10px 0;
}

nav ul {
    list-style-type: none;
    text-align: center;
}

nav ul li {
    display: inline;
    margin-right: 20px;
}

nav a {
    text-decoration: none;
    color: #ffffff;
    font-weight: bold;
    font-size: 18px;
}

.section {
    padding: 40px 0;
    text-align: center;
}

.container {
    max-width: 800px;
    margin: 0 auto;
}

h1, h2 {
    color: #007BFF;
}

footer {
    background-color: #007BFF;
    color: #ffffff;
    text-align: center;
    padding: 10px 0;
}