I'm trying to create an image gallery for a collection of 4x5 aspect ratio portrait
orientation images, some of which can be seen in the gallery at

I like the gallery shown at demo.fearlessfly[dot]com/html/demo/bootstrap-photo-
gallery/ but, after four hours playing whack-a-mole with the problem today, it seems
like the modifications to the gallery code that need to be made so I can pour my images
into it are way beyond my skills.

If someone could aim me at a how-to resource on the web where I can get help creating a
functioning gallery with just one row of thumbnails (4, or 6?) and associated click
through images working correctly I'd be grateful.

Thanks in advance.