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?

The issue you're experiencing with Safari displaying a "black" background instead of transparent when setting the background color of a div positioned over a dark background to transparent in Webflow is most likely due to a Safari-specific rendering bug.

Safari, as a browser, interprets CSS properties and renders web pages differently compared to other browsers such as Chrome or Firefox. This can sometimes lead to inconsistencies in the way certain CSS properties are displayed.

One possible solution to this issue is to use RGBA color values instead of the transparent keyword. The transparent keyword can sometimes be misinterpreted by Safari, resulting in unexpected background colors. By using RGBA, you can achieve transparency while ensuring consistency across different browsers.

For example, instead of setting the background color to transparent:

```css
div {
background-color: transparent;
}
```

You can use an RGBA value to set the background color:

```css
div {
background-color: rgba(0, 0, 0, 0);
}
```

In this example, the last value (0) represents the alpha channel, which determines the transparency level. By setting it to 0, you achieve complete transparency for the div's background color.

Another workaround could involve setting the background color of the div to a very low opacity value (e.g., rgba(0, 0, 0, 0.001)). This can also help overcome the Safari rendering bug and display the div as transparent.

Additionally, double-checking if there are any other conflicting CSS rules or styles applied to the div or its parent elements might also be helpful. In some cases, there might be other CSS properties that unintentionally affect the background color interpretation.

It's also worth considering the version of Safari you're using, as newer versions may have provided fixes or improvements related to these rendering issues. If possible, try updating your Safari browser to the latest version to ensure you're benefiting from any bug fixes.

If the issue persists even after trying these suggestions, it might be worth reporting it to Webflow's support team. They have a deeper understanding of the platform and may be aware of any specific workarounds or solutions tailored to Webflow's environment.