CSS Will Change Module Level 1 First Draft Published

The Cascading Style Sheets (CSS) Working Group has published a First Public Working Draft of CSS Will Change Module Level 1. This document defines the will-change CSS property, which allows an author to inform the UA ahead of time of what kinds of changes they are likely to make to an element. This allows the UA to optimize how they handle the element ahead of time, performing potentially-expensive work preparing for an animation before the animation actually begins. Learn more about the Style Activity.