If your images flicker or grow gradually when you zoom in
Fancybox or Lightbox javascript libraries, your problem is bootstrap > it may be caused by tan or a similar framework. The first option you will understand this is that the Close button is not in the upper right corner. In this way, you can add the following css code to the bottom.
#fancybox-content,#fancybox-outer,#fancybox-wrap
{-webkit-box-sizing:content-box!important;box-sizing:content-box!important;}
