Greasy Fork is available in English.
Moves the controls under the video and makes the UI look like it was before august 2015
Retested:
I have always some problem to have it always visible and updated:
I try some other scripts like this one mentioned before, but ....
Can you add a similar function to your script?
Solution about progress bar problem: not updated without hover...
I use this one which work well: YouTube Progressbar Updater