body{margin:0;font-family:sans-serif}
.top{background:#111;color:#fff;padding:12px}
.top a{color:#fff;margin-right:12px;text-decoration:none}
.hero{padding:60px;text-align:center}
.btn{display:inline-block;padding:12px 20px;background:#000;color:#fff;text-decoration:none}
footer{text-align:center;padding:20px;background:#f5f5f5}