What is the shortcut keyboard key to rewind 5 and 10 seconds watching the learning videos?

Hello Jeffrey Green the rewind buttons are the arrows on the bottom right corner of your screen.

Thank You bonk.  If I understand you correctly, you are saying to look for arrows on the screen (not the keyboard) but I don't see any.  For the Computer Programming, Unit 2: Intro to HTML/CSS, Intro to HTML, Welcome to the Web, I am able to use the left and right arrows on my keyboard (which is faster) to rewind and forward the video 5 seconds.  For Unit 1: Intro to JS: Drawing and Animation, Lesson 2: Drawing basics, Making drawings with code,  I am unable to use the left and right arrows on my keyboard but of course if I click  on "Watch on YouTube" then they work but then the interactive features no longer work.  So it appears that it depends on the lesson and type of video that was created.  I am very interested though to know where you would find the arrows to rewind/forward on the screen as you say above "rewind buttons are the arrows on the bottom right corner of your screen".  It sounds like they are also on the screen as you say but probably haven't seen any lesson videos like that yet, is that probably correct?  If you can point me to a lesson to see arrows on the screen, I would be appreciative.  :-)