body{color:#fff;background:#000;margin:0}body nav{background:#151515;margin:0;padding:13px 5px}body nav a{color:#eee;text-decoration:none;background:#292929;border-radius:10px;margin:4px;padding:6px}body main{text-align:center}body main .start{background:#070707;border:1px solid #666;border-radius:10px;margin:15px;padding:10px}code,kbd{display:block;text-align:left;white-space:pre-wrap;background:#171717;border-radius:4px;margin:10px;padding:5px}:is(code,kbd)[title]:before{display:block;content:attr(title);background:#333;border-radius:5px;width:min-content;margin:3px;padding:3px}