body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    margin: 20px;
    color: #333;
}

nav {
    background: #f4f4f4;
    padding: 10px;
    border-bottom: 2px solid #007bff;
    margin-bottom: 20px;
}

nav a {
    margin-right: 15px;
    text-decoration: none;
    color: #007bff;
    font-weight: bold;
}

h1,
h2 {
    color: #007bff;
}

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

code {
    background: #eee;
    padding: 2px 5px;
    border-radius: 4px;
}