body{font-family:sans-serif;color:#222;background:#f2edda;line-height:1.5;margin:1rem;max-width:768px}header{margin-bottom:1rem}footer{margin-top:1rem}a{color:#2aa63e;text-decoration:none}.nav-item li{padding:.2em}.nav-item li .active{background:#fff}header .nav{}header .nav .nav-item{}@media print{a{color:#000}header{display:none}main{margin:2em}}