body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    background: #f5f5f5;
    color: #111111;
}

.wrapper {
    max-width: 960px;
    margin: 0 auto;
    padding: 1.5rem;
    background: #ffffff;
}

h1, h2, h3 {
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

a {
    color: #0066cc;
    text-decoration: none;
}

a:hover,
a:focus {
    text-decoration: underline;
}