body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    max-width: 800px;
    margin: 40px auto;
    padding: 0 20px;
    color: #222;
    background-color: #ffffff;
}

header {
    margin-bottom: 30px;
}

h1 {
    font-size: 2em;
    margin-bottom: 0.2em;
}

h2 {
    margin-top: 40px;
    margin-bottom: 10px;
}

p {
    margin-bottom: 15px;
}

nav ul {
    list-style: none;
    padding: 0;
    margin-bottom: 30px;
}

nav li {
    display: inline;
    margin-right: 15px;
}

a {
    text-decoration: none;
    color: #2a6df4;
}

a:hover {
    text-decoration: underline;
}

section {
    margin-bottom: 30px;
}