--- --- *{margin:0;padding:0;box-sizing:border-box}html{width:100%}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}header,main,footer{margin:20px 0}h1,h2,h3{line-height:1.2;margin:1em 0}@media(prefers-color-scheme:dark){body{color:#c9d1d9;background:#0d1117}a:link{color:#58a6ff}a:visited{color:#8e96f0}}