body{
    max-width:650px;
    margin:40px auto;
    padding: 0 10px;
    font: 18px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
    color:#444;
}

h1, h2, h3 {
    line-height:1.2
}

@media (prefers-color-scheme: dark) {
    body{
        color:#c9d1d9;
        background:#0d1117
    }

    a:link {
        color:#58a6ff
    }
    a:visited {
        color:#8e96f0
    }
}
/* end */