{# Root element of PhotoSwipe. Must have class pswp. #}
{# Background of PhotoSw #}
{# It's a separate element as animating opacity is faster than rgba(). #}
{# Slides wrapper with overflow:hidden. #}
{# Container that holds slides. #}
{# PhotoSwipe keeps only 3 of them in the DOM to save memory. #}
{# Don't modify these 3 pswp__item elements, data is added later on. #}
{# Default (PhotoSwipeUI_Default) interface on top of sliding area. Can be changed. #}
{# Controls are self-explanatory. Order can be changed. #}
{# Preloader demo http://codepen.io/dimsemenov/pen/yyBWoR #}
{# element will get class pswp__preloader--active when preloader is running #}