<!DOCTYPE html>
<html lang="ko">
<head>
<meta charset="UTF-8">
<title>HTML select tag - required attribute</title>
</head>
<body>
<form action="/examples/media/action_target.php" method="get" id="myForm">
<select name="order" required>
<option value="">선택되지 않음</option>
<option value="americano">아메리카노</option>
<option value="caffe latte">카페라테</option>
<option value="cafe au lait">카페오레</option>
<option value="espresso">에스프레소</option>
</select><br>
<input type="submit">
</form>
</body>
</html>