In this example (based on a snippet from here): See the Pen syuEf by anon (@anon) on CodePen   I have three background elements.  I am wondering if there is an easy way to: animate the value of the linear gradient background independently animate (different start/stop times, different start/stop values) the background-position and background-size for each background image Do I need to do the bookkeeping myself for each background, or are there helpful featur