Board Thread:Support Requests - Getting Technical/@comment-1295676-20150824023315/@comment-4731443-20150824165944

First verification: did you also add it to .pi-theme-yes? And if not, are you testing on a page that has the gallery? If it doesn't work on an infobox without the gallery or you've added it to both, that's strange. Also make sure to force refresh (ctrl+F5 on Firefox) after you save the CSS to clear your cache.