body{font-family:Arial,sans-serif;background:#111;color:#fff;margin:0}
header,footer{background:#000;padding:20px;text-align:center}
nav a{color:#fff;margin:0 10px;text-decoration:none}
.hero{padding:60px 20px;text-align:center}
.content{max-width:1000px;margin:auto;padding:20px}