<!DOCTYPE html>
<html lang="en-US">
<body>
<form action="/user-age.php" id="myForm">
<p>What is your age (0 - 99)?</p>
Age: <input type="text" name="age" pattern="[0-9]{1,2}">
<input type="submit" value="Submit">
</form>
<p><strong>Note</strong>: Try submitting your age as <strong>100</strong> or more.</p> </body>
</html>