You seem to have a unique gallery that will do exactly what I need. One of the things mentioned on your site is that it is responsive. The page on your site that I want to emulate is:
but this isn’t responsive.
What I want to achieve with your gallery:
There has a video container at the top with potentially unlimited rows of three thumbs under, that break to a single column on mobile devices.
So the question is, if I buy a licence will I be able to make your gallery responsive and style it to look identical to my test page.
Yes, you can achieve that with HTML5 Gallery.
The reason http://html5box.com/html5gallery/demo_mediacenter.php is not responsive is because our website itself is not responsive.
You just need to add the following data tag to your DIV, then the gallery will be responsive. Of course, your website itself must be responsive too.