Why does Safari display a "black" background instead of transparent when I set the background color of a div positioned over a dark background to transparent in Webflow?

Safari may display a black background instead of transparent due to rendering inconsistencies with backdrop filtering or missing background-color: rgba(255, 255, 255, 0) instead of transparent. Here’s how to troubleshoot and fix the issue in Webflow.

1. Check Background Color Definition

• Avoid using transparent alone; instead, set the background as rgba(255, 255, 255, 0).
• In Webflow, go to the Background section, choose the Color picker, and set the Opacity to 0.

2. Verify Backdrop Filter Settings

• If you are using backdrop filters (e.g., blur or brightness), Safari may misinterpret transparency.
• Solution: Ensure the container behind the transparent div has a solid or semi-transparent background instead of being fully transparent.

3. Use WebKit-Specific CSS if Necessary

• Safari sometimes requires explicit WebKit rules for transparency effects.
• Add a Custom Embed Code inside Webflow’s page settings:
  ```css
  .your-div-class {
  background-color: rgba(255, 255, 255, 0) !important;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  }
  ```
  Replace .your-div-class with the actual class name of your div.

4. Test in Different Safari Versions

• Check if the issue occurs in both Safari on macOS and Safari on iOS.
• Older Safari versions may not fully support backdrop filters or transparency.

Summary

Safari may display a black background due to backdrop filtering issues or missing explicit transparency values. Ensure you use rgba(255, 255, 255, 0) instead of transparent, check backdrop filters, and use -webkit-backdrop-filter if needed.