[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Animation](./puppeteer.protocol.animation.md) > [AnimationEffect](./puppeteer.protocol.animation.animationeffect.md) > [keyframesRule](./puppeteer.protocol.animation.animationeffect.keyframesrule.md) ## Protocol.Animation.AnimationEffect.keyframesRule property `AnimationEffect`'s keyframes. Signature: ```typescript keyframesRule?: KeyframesRule; ```