Question:
Can you please tell me the difference between gallery and html5 lightbox?
Answer:
They are similar products, both support images and videos, but they can make different style galleries:
With HTML5 gallery, you can embed the gallery in your web page.
With HTML5 Lightbox, your can display an image/video/gallery in a lightbox popup.
You can check and compare the demos at http://html5box.com/