This demo showcases how HTML can be used in your captions. Captions in this gallery include anchor links to Pixabay where the images were sourced. When you click a thumbnail, it is opened in FooBox, and then the anchor link can be clicked in the FooBox caption to open the Pixabay profile page.
Myriams-Fotos / Pixabay
alvaroas8a0 / Pixabay
Engin_Akyurt / Pixabay
lightstargod / Pixabay
markrademaker / Pixabay
Marisa04 / Pixabay
InspiredImages / Pixabay