NUMBER INPUT FIELD WITH ATTRIBUTES
Run 
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>HTML</title>
</head>
<body>
    <h2> Input field for number</h2>
	<label for="age"> Enter Age </label>
    <input type="number" id="age" name="age" max="100" min="18" step="1" value="18" >
</body>
</html>