body{font-family:Arial;margin:0;background:#f4f4f4}
header{background:#ff4f7b;color:#fff;padding:30px;text-align:center}
.container{max-width:900px;margin:auto;padding:20px}
.btn{display:inline-block;padding:10px 16px;background:#ff4f7b;color:#fff;text-decoration:none;margin-right:10px}