Why is WebKit Translate3d Animation Blurring My Text?

Webkit-Based Blurry Text Issue in Translate3d Animation: A Persistent Enigma

WebKit-based browsers, including the ubiquitous iPhone, have been plagued by a persistent issue that manifests as blurry or distorted text when using translate3d for animations.

Despite extensive investigation, the exact cause of this phenomenon remains elusive. Various workarounds, such as removing relative positioning and implementing -webkit-font-smoothing: antialiased, have proven ineffective.

The only reliable solution identified so far is to abandon translate3d and resort to pure JavaScript-based animations. However, this comes at a significant performance penalty on WebKit-enabled devices.

One user has reported a partial fix by introducing fractional pixel adjustments to the translate3d values. The following code snippet exemplifies this approach:

top: 49.9%;
left: 49.9%;
-webkit-transform: translate(-50.1%, -50.1%);
transform: translate(-50.1%, -50.1%);

While this solution may provide some relief, it falls short of addressing the fundamental issue and may not be suitable for all scenarios.

As the search for a more robust solution continues, developers are forced to balance performance and graphical fidelity, weighing the advantages of translate3d against the potential for text degradation. The hope remains that a definitive resolution will emerge, enabling seamless animated text rendering across all platforms.

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