Browser & Web Performance · Middle · Question 3 of 75

What is the risk of adding `will-change: transform` to many elements?

✓Correct answer: Each one may get its own compositor layer, costing GPU memory and sometimes making things slower
2It disables CSS transitions
3It forces a full page reflow on every frame

Explanation

will-change is a hint for elements that are about to animate, not a general speed-up. Overuse leads to layer explosion.

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