Dj.Sunrise's post in Play video OnEntry and pause onLeave was marked as the answer
I read all topics but I didnt find solution what I need.
I need to play video when video on viewport and pause If user Leave the section.
for example this topic have too much excess code for me.I tried to use it and it's didn't work for me.
i need simple code onEntry OnLeave. Play html 5 <video>