body {
    /* font-family: sans-serif; */
    line-height: 1.6;
    color: #333;
    max-width: 60em;
    margin: 2em auto;
    padding: 0 3em;
    font-size: 20px;
}

@media (max-width: 768px) {
    body {
        font-size: 20px;
        margin: 1em auto;
        padding: 0 1.5em;
    }

    h1 { font-size: 1.75em; }
    h2 { font-size: 1.35em; }
}

h1, h2, h3 {
    color: #333;
    margin-top: 1.5em;
}

h1 { font-size: 2em; }
h2 { font-size: 1.5em; }

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

a:hover {
    text-decoration: underline;
}

ul, ol {
    margin: 1em 0;
    padding-left: 2em;
}

li {
    margin: 0.5em 0;
}

pre, code {
    font-family: monospace;
    background-color: #f2f2f2;
    border: 1px solid #e6e6e6;
    border-radius: 3px;
}

code {
    padding: 2px 4px;
}

pre {
    padding: 1em;
    overflow: auto;
}