body{font-family:Arial,sans-serif}.container{max-width:600px;margin:0 auto;padding:20px}h1{color:#007bff;margin-bottom:20px}form{margin-bottom:20px}input[type=text],input[type=email]{display:block;width:100%;padding:8px;margin-bottom:10px;border:1px solid #6c757d;border-radius:4px}button{padding:8px 16px;background-color:#007bff;color:#fff;border:none;border-radius:4px;cursor:pointer}.success-message{color:#28a745}.error-message{color:#dc3545}