@media (prefers-color-scheme: dark){
    body {
        background:#000;
        color: white;
    }
}

body{
    margin: 1em auto;
    max-width:40em;
    padding:0 .62em 3.24em;
    font:1.2em/1.62 sans-serif
}

a {
    margin: 0 2em 0 0;
    text-decoration: none;
}

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

@media print{
    body{
        max-width:none
    }
}