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Does the "fixed" background picture property not work on iPhone 5 when using Webflow?

TL;DR
  • iOS Safari disables background-attachment: fixed on older iPhones for performance reasons.
  • Use a full-screen div with absolute positioning, CSS transform tricks, or JavaScript-based parallax effects as workarounds.
  • Test on a real iPhone 5 or Safari’s Responsive Design Mode, as Webflow Preview won’t reveal the issue.

The "fixed" background property in Webflow may not work on older iPhones like the iPhone 5 due to how iOS handles background-attachment: fixed. This is a known limitation in WebKit-based browsers (Safari, Chrome on iOS).

1. Why Doesn't "Fixed" Work on iPhone 5?

  • iOS Safari disables background-attachment: fixed on smaller devices to optimize performance.
  • Lack of GPU acceleration on older iPhones can cause the effect to be disabled.
  • Even newer iPhones sometimes don't render fixed backgrounds correctly in Safari.

2. Workarounds for Fixed Backgrounds

Instead of using background-attachment: fixed, try one of these methods:

  • Use a "Div Block" with Absolute Positioning

  • Place the background image in a full-screen Div Block.

  • Set it to absolute (Full > Cover the Entire Viewport).

  • Adjust the z-index so content moves over it.

  • Use CSS Transform Trick

  • Apply transform: translateZ(0); to the background element.

  • This forces GPU rendering, sometimes solving the issue.

  • Use an Alternative Effect (Parallax Scripts)

  • Consider using a JavaScript parallax library (like Rellax.js) to mimic a "fixed" effect.

  • This approach moves the background dynamically instead of relying on CSS fixed.

3. Test on Different Devices

  • Test your site using Webflow’s Preview Mode won't reveal this issue because it doesn't simulate iOS's rendering quirks.
  • Instead, test on a real iPhone 5 or use Safari’s Responsive Design Mode in macOS.

Summary

The "fixed" background property doesn't work on iPhone 5 due to iOS restrictions. Try using a full-screen div, CSS transform tricks, or JavaScript-based parallax effects to achieve a similar effect.

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