CSS Animations Level 2 First Draft. Learn about the two new properties, JavaScript interfacing involved with the animation family of properties, and much more.

Changes since CSS Animations Level 1

• The interaction between CSS Animations and Web Animations is defined, and the concepts of the owning element and animation composite order are introduced.
• Generation of keyframe objects is described in detail.
• The animation-composition property is introduced, which defines the composite operation used when multiple animations affect the same property simultaneously.
• The animation-timeline property is introduced, which defines the timeline used with the animation.
• The animation shorthand property is updated to account for these new properties.
• Dispatch of animation events is described.
• The CSSAnimation interface is added.
• Requirements on pending style changes are described.