body {
    font-family: 'Times New Roman', Times, serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f9;
    color: #333;
}

header {
    background: #007acc;
    color: white;
    padding: 1rem 0;
    text-align: center;
}

header h1 {
    margin: 0;
    font-size: 2rem;
}

main {
    padding: 1rem 2rem;
}

section {
    margin-bottom: 2rem;
}

h2 {
    color: #000000;
    border-bottom: 2px solid #007acc;
    padding-bottom: 0.5rem;
}

pre {
    background: #e8e8e8;
    padding: 1rem;
    border-radius: 5px;
    overflow-x: auto;
    font-family: 'Times New Roman', Times, serif;
}