* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: white;
    font-family: monospace, sans-serif;
    color: #333;
    font-size: 16px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    text-align: center;
}

header {
    display: flex;
    flex-direction: column;
    align-items: center;
}

nav {
    margin-top: 10px;
}

nav ul {
    list-style-type: none;
    padding: 0;
    display: flex;
    justify-content: center;
}

nav ul li {
    margin: 0 15px;
}

nav a {
    text-decoration: none;
    color: #333;
}

nav a:hover {
    text-decoration: underline;
}

main {
    text-align: left;
}

main a {
    text-decoration: none;
    color: blue;
}

main a:hover {
    text-decoration: underline;
}

main ul {
    list-style-type: disc;
    padding-left: 20px;
    margin-left: 0;
}

main li {
    margin-bottom: 10px;
    text-indent: -1em;
    padding-left: 1em;
}

p {
    margin-bottom: 15px;
}

blockquote {
    font-style: italic;
    margin: 20px 0;
    padding: 10px;
    border-left: 5px solid #333;
    color: #555;
}

pre {
    background-color: #f4f4f4;
    border: 1px solid #ccc;
    border-radius: 5px;
    padding: 15px;
    overflow: auto;
    white-space: pre-wrap;
    font-family: monospace;
}

footer a {
    text-decoration: none;
    color: blue;
}

footer a:hover {
    text-decoration: underline;
}

hr {
    margin: 20px 0;
}

footer {
    padding: 10px;
    font-size: 0.8em;
}

@media (min-width: 600px) {
    header {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        text-align: left;
    }

    nav {
        margin-top: 0;
    }
}

@media (max-width: 600px) {
    nav {
        margin-top: 10px;
    }
}