How can I make a slider show up when clicking on a photo?

Question

css

v5.master-css.com/Grisha969/turkish/category.html#
Just below there are 6 photos, when you click on them, a slider appears, but it turned out that when you open it, its height and width are at zero. I understand that he did not have time to update. How to fix it!

Answer 1

because the code should be like this

<a class="fancybox" href="images/img48.jpg" name="2">
            <img src="images/img48.jpg" class="img-responsive" alt="">
            <figcaption>
              <p>םיטרפל<span class="butt_add"></span></p>
            </figcaption>
</a>

the link must lead to a specific image that you want to open in the pop-up, and the class of the link must be fancybox