Does translateZ(0) Always Improve CSS Performance?

CSS Performance Implications of translateZ(0)

The use of translateZ(0) has been touted as a performance hack to improve the efficiency of animations and transitions. However, there are potential consequences to mindlessly applying this transform across the board.

What are the implications?

Applying translateZ(0) to all elements creates a new stacking context and containing block. This means that fixed position elements with a transformation will act like absolute position elements. Additionally, z-index values may behave unexpectedly.

Consequences in practice:

As illustrated in this demo, when any element receives a 3D transform, it establishes a new stacking context. Consequently, pseudo elements are positioned above it rather than within it.

Recommendations:

To avoid these issues, limit the use of 3D transformations to situations where the performance benefits are genuinely needed. Alternatively, consider using transform: translateZ(0) translate3d(0, 0, 0) to tap into 3D acceleration without creating stacking problems. Note, however, that this option is only supported in Safari.

The above is the detailed content of Does translateZ(0) Always Improve CSS Performance?. For more information, please follow other related articles on the PHP Chinese website!