NYT also created a similar experience using video where video.currentTime was tied to scroll location: https://www.nytimes.com/interactive/2019/10/30/world/midd

NYT also created a similar experience using video where video.currentTime was tied to scroll location: https://www.nytimes.com/interactive/2019/10/30/world/middleeast/syria-turkey-maps.html https://www.nytimes.com/interactive/2019/10/30/world/middlee... I think there are some restrictions on video encoding parameters in order to make scrolling feel smooth which will increase the video size.