Why is My iPhone WebKit CSS Animation Flickering, and How Can I Fix It?

iPhone WebKit CSS Animations Causing Flicker

In a detailed question, a user describes experiencing an issue where CSS animations on an iPhone website result in a flicker. They have implemented CSS transitions and transforms for animation but are encountering flicker during interactions, particularly when scrolling or performing certain actions on the page.

After careful analysis, a solution emerged:

Adding CSS Properties for Flicker Prevention:

To resolve the flicker, the following properties were added to the CSS:

• -webkit-backface-visibility: hidden;
• -webkit-perspective: 1000;

Explanation:

• -webkit-backface-visibility: hidden; prevents the unseen side of an element from being rendered, minimizing rendering issues that can cause flicker.
• -webkit-perspective: 1000; creates a perspective effect for the element, reducing the perceived flicker by creating a three-dimensional context.

By combining both properties, the flicker was effectively eliminated, providing a smoother and visually seamless experience for users on the iPhone website.

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