@media (prefers-color-scheme: dark){body{color:#fff;background:rgb(27,27,27)}a:link{color:#9cf}a:hover,a:visited:hover{color:#cef}a:visited{color:#c9f}}body{text-align:center;margin:1em auto;max-width:40em;padding:0 .62em;font:1.2em/1.62 sans-serif}h1,h2,h3{line-height:1.2}@media print{body{max-width:none}}.duck{padding-bottom:10px}