Improve CSS Animation with will-change Property

will-change CSS Property

As a web developer, performance optimization is crucial when building modern websites.

One lesser-known but powerful CSS property that can influence rendering performance is will-change.

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It allows you to hint to the browser that an element is likely to change, prompting it to optimize for upcoming transformations.

However, improper use can lead to performance degradation rather than improvement.

In this article, you’ll learn what will-change does, when to use it, when to avoid it, and how to leverage JavaScript to control it dynamically.

What is will-change?

The will-change property allows developers to specify which CSS properties of an element are expected to change soon.

This helps browsers optimize rendering in advance, reducing potential performance bottlenecks.

Syntax:

.element {
  will-change: transform, opacity;
}

This example tells the browser that the element’s transform and opacity properties will change.

Commonly Used Values:

• auto (default) – No specific optimizations are…