<!DOCTYPE html>
<html>
<head>
<title>
</title>
</head>
<body>
<form id="myForm">
<fieldset>
<legend>Solution 4-8: Creating custom input types using regular expressions</legend>
<label> Insert a valid American Zip code:
<input type="text" name="ssn"
pattern="(\d{5}([\-]\d{4})?)"
title="Zip Code" />
</label>
<p><input type="submit" value="Check Zip code" /> </p>
</fieldset>
</form>
</body>
</html>
