Is there a css code to make a gallery thumbnail not scroll to the left as you click on the other images?

I tried this code but its not working:

 

/* Align center gallery thumbnails */
.gallery-slideshow-thumbnails {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
}

/* Prevent thumbnails from moving */
.gallery-slideshow-thumbnail {
    flex: 0 0 auto !important;
}
 

6 hours ago, freelancingthisdesign said:

I tried this code but its not working:

 

/* Align center gallery thumbnails */
.gallery-slideshow-thumbnails {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
}

/* Prevent thumbnails from moving */
.gallery-slideshow-thumbnail {
    flex: 0 0 auto !important;
}
 

Can you share your URL so I can check it?