2024-10-08
<!DOCTYPE html>
<html lang="ko">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<div align="center">
<h3>수량을 선택하세요.....</h3>
<hr width="30%">
<input type="number" min="1" max="50" step="3">
<!--
step : 증가값 설정
-->
</div>
</body>
</html>
