Showing a “close box” text link
By default Boxzilla will add a close icon to the top right corner of your box. There are other options though. Sometimes it can be useful to get rid of the icon and use a text link instead, since text can convey meaning.
Here's a great example from the You Need A Budget blog.
Adding the text link
To add a "close box" hyperlink just like in the example above, go to the page where you edit your Boxzilla pop-up and add the following shortcode to your box content.
Your regular box content. [boxzilla-close]No thanks[/boxzilla-close]
Boxzilla will automatically replace the
[boxzilla-close] tags with the proper HTML for closing the pop-up.
Hiding the close icon
To get rid of the close icon on the top right, scroll down to your box options and find the following setting.