duncanmcdougall/Responsive-Lightbox — pull request #15 by nathanhornby (2014-02-08 17:47:35+00:00)
Title: Slightly improved z-indexing

I added a z-index to the lightbox itself, and layered the caption and buttons over it accordingly. This fixed an issue for me where a fixed header was still sitting over the close button even though it had a lower z-index.