Responsive images today

Video Channel
Please help us to find bad videos. Broken or unappropriated video content?
For developers who want to use responsive images today, what can they do? We'll cover the current state like picture, img src, srcset, etc and include suggestions around art direction.
Fpvracer.lt is not the owner of this text/video/image/photo content, the real source of content is Youtube.com and user declared in this page publication as Youtube.com user, if you have any question about video removal, what was shared by open community, please contact Youtube.com directly or report bad/not working video links directly to video owner on Youtube.com. Removed video from Youtube.com will also be removed from here.