jekyll_picture_tag (rubygems):     Jekyll Picture Tag adds responsive images to your Jekyll static site. It     automatically creates resized source images, is fully configurable, and     covers all use cases, including art direction and resolution switching, with     a little YAML configuration and a simple template tag. 
Keywords: art-direction|html5|jekyll|jekyll-picture-tag|picture-tag|resized-images|responsive-images|ruby|webp-images