I edited the files. In the CSS file, I deactivated the display function of the verses, and now all the verses are visible;
.verse {
/* display: none; */
z-index: 3;
}
In the JavaScript file, I replaced the existing code with a new code and nothing happened; the JS doesn't connect with the XHTML file;
The current version of the EPUB can be downloaded from the following page:
https://www.edgedpub.com/sample_work_6.php
I also created a pen with the same files
https://codepen.io/edgedpub/pen/BabrNzz