Sign into an existing account

I just played a youtube link in-line (by clicking the "+" by the post, putting the video into action on the page). When I hit the "-" the video disappeared, but the video did not stop playing, I could hear it playing.

Also, these stupid tiktok videos are too long to fit on the page, and you can only see half of the video at any time unless you follow the link or fullscreen it. I think this is a bug, because the video should be scaled to fit the browser's viewing area. It's ridiculous to have to scroll the page up and down to see the video.