...Featherlight is very, very lightweight. 400 lines of JavaScript, 100 of CSS, less than 6kB combined. Many lightbox plugins try to handle everything for you. Even the ones called «simple» or «lightweight». Featherlight is different. It's for the pro who knows what he’s doing and just needs a barebones plugin. Don't be fooled by Featherlight's small footprint! It's smart, responsive, supports images, ajax and iframes out of the box and you can adapt it to your needs. To get started, simply add the "data-featherlight" with a selector, an image or an ajax-url. It's that simple.