Thank you for your comment: it allowed me to understand that the empy blocks I was seeing were meant to be videos (Firefox user here). It's sad to find out tha

Thank you for your comment: it allowed me to understand that the empy blocks I was seeing were meant to be videos (Firefox user here). It's sad to find out that they ignored that mp4 isn't supported by all browsers. I know: HTML5 video is just a PITA, and that's indeed a reason why so many still rely on gifs. I hope this project grows, and that they will care a bit more than they did here.