body{margin:0;font-family:Arial,sans-serif}.container{max-width:1200px;margin:0 auto;padding:0 20px}.btn{padding:10px 20px;background:#007bff;color:#fff;border:none;border-radius:4px;cursor:pointer}.btn:hover{background:#0056b3}.input-field{padding:10px;border:1px solid #ddd;border-radius:4px;width:100%;box-sizing:border-box}