HTML < input type="hidden"> attribute example

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<!DOCTYPE html>
<html>
<body>
    <h1>input type="hidden" attribute example</h1>
    <form action="/action_page.php">
        <label for="fname">write you'r First name:</label>
        <input type="text" id="fname" name="fname"><br><br>
        <input type="hidden" id="custId" name="custId" value="2023">
        <input type="submit" value="Submit">
    </form>
    <p>The field information will not be shown to the user but will be sent at the time of submission.</p>
</body>
</html>