Fix CSS for slideshow spinner [ci skip]
Fix CSS for slideshow spinner
[ci skip]

IATkachenko/gallery,IATkachenko/gallery,viraj96/gallery,IATkachenko/gallery,desaintmartin/gallery,imjalpreet/gallery,imjalpreet/gallery,owncloud/galleryplus,owncloud/gallery,tahaalibra/gallery,setnes/galleryplus,tahaalibra/gallery,interfasys/galleryplus,owncloud/galleryplus,interfasys/galleryplus,setnes/gallery,desaintmartin/gallery,desaintmartin/gallery,tahaalibra/gallery,setnes/galleryplus,owncloud/gallery,setnes/galleryplus,owncloud/gallery,owncloud/galleryplus,interfasys/galleryplus,viraj96/gallery,setnes/gallery,viraj96/gallery,imjalpreet/gallery,setnes/gallery