Using jQuery to append a div to a dynamically created div after AJAX success

[admin]

I am using the <a href="https://wordpress.org/plugins/wp-polls/" rel="nofollow">WP-Polls</a> plugin for WordPress which is an AJAX polling system and I'm trying to append an initially hidden div (

.comment-block

) to a new div (

.voted

) which will be dynamically inserted into the DOM by the WP-Polls plugin upon AJAX success. Once the user has voted and clicked on the vote button (

.Buttons

), the DOM updates to reflect the addition of the new (empty) div with a class of

.voted

. I put up a similar question earlier but thought I'd open a new more relevant thread.

<blockquote>
Note: The

.voted

div was created through the templates that WP-Polls
offers in the dashboard. The plugin offers templates for "before
the user has voted" and "after the user has voted" and what I did was
insert a div into the latter like this:

<div class="voted"></div>

. The reason why I can't just add content inside that div directly is because the content in the div to be appended (

.comment-block

) is a contact form created by the plugin Contact Form 7 and it requires a PHP statement. Only HTML is allowed in the templates.
</blockquote>

Among other various failed attempts, I have tried to use

.on

so that clicking on

.Buttons

would activate the function. However, nothing was changed in the DOM.

$(document).on('click', '.Buttons', function() {
    $('.comment-block').appendTo('.voted');
});

Below is the HTML. This is before the user has voted:

<div id="poll">
    (poll here) + .Buttons vote button                  <-- in here----------| 
</div>                                                                       |
<div class="comment-block" style="display:none">        <-- I want this div  |
    <?php echo do_shortcode('[contact-form-7]'); ?>
</div>

And this is how I want it to look after the user has voted:

<div id="poll">
    <div class="voted">                                 <-- dynamically created div
        <div class="comment-block" style="display:block">
            <?php echo do_shortcode('[contact-form-7]'); ?>
        </div> 
    </div>
</div>

If anyone can show me the way, I'd appreciate it. I've been racking my brain with this one for hours.

Edit: I am not up to speed with AJAX so I'm unable to provide exactly the code that is needed, but here is a list of the files for the plugin: <a href="https://github.com/lesterchan/wp-polls" rel="nofollow">https://github.com/lesterchan/wp-polls</a>