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How can I improve the performance of animations in CSS?

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How can I improve the performance of animations in CSS? Pending Review

Asked on Mar 20, 2026

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To improve the performance of animations in CSS, focus on using properties that trigger the least amount of layout recalculations and rendering work in the browser. Opt for properties like `transform` and `opacity`, which are handled by the GPU, to ensure smoother animations.

Example Concept: Animating properties like `transform` and `opacity` leverages the GPU for rendering, reducing the workload on the CPU and avoiding layout recalculations. This results in smoother and more efficient animations, as these properties do not trigger reflows or repaints, unlike properties such as `width`, `height`, or `top`.

Additional Comment:

Use `will-change` to hint the browser about upcoming animations, but apply it sparingly to avoid excessive memory usage.
Minimize the use of JavaScript for animations to reduce main thread work.
Consider using CSS animations or transitions instead of JavaScript-based animations for better performance.
Profile animations using browser developer tools to identify bottlenecks and optimize them.

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How can I improve the performance of animations in CSS? Pending Review

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