The animated background image is actually a video [0]. There are class names that contain "scrollmagic" so maybe that's it [1]. [0] https://espnfivethirtyeight

The animated background image is actually a video [0]. There are class names that contain "scrollmagic" so maybe that's it [1]. [0] https://espnfivethirtyeight.files.wordpress.com/2018/01/juiced.mp4 https://espnfivethirtyeight.files.wordpress.com/2018/01/juic... [1] http://scrollmagic.io http://scrollmagic.io