I have a weird problem. I have a freight calculation field to be executed if the User deletes a digit input , I hide one content. While running the script in chrome console, it is loaded, but when using the call in html, js it does not run. This is what I have.

<https://jsfiddle.net/diasbass/u3xr0921/>

```
jQuery(document).ready(function($) {
    $("#btnFreteSimulacao").click(function() {
        $("#txtCep").keyup(function() {
            if ($("#txtCep").val()) {
                $('p.montagem').hide();
            } else {
                $('p.montagem').show();
            }
        });
    });
});

```