Avoiding Unnecessary Paints: Animated GIF Edition - HTML5 Rocks
Paul Lewis, Chrome dev relations:
Avoiding paints is critical to achieving a silky smooth frame rate, especially on mobile. Sometimes, however, paints crop up in the most unusual of places. This article looks at why animated GIFs can cause unnecessary paints to occur, and the remarkably simple fix you can apply.
And a great follow-up post by Jonathan Sampson for testing via IE11’s tools and responsiveness.