The "fixed" background property is a CSS feature that is supported by modern browsers, including Safari on iPhone 5 and newer models. However, the support for fixed background images on mobile devices can sometimes be inconsistent.
In Webflow, you can use the "fixed" background property by selecting the element you want to apply it to and then accessing the background settings in the Style panel. From there, you can set the background image and choose the "Fixed" position option.
It's important to note that the behavior of fixed background images can vary depending on the browser and device. On some older or less powerful devices, including older iPhone models, the rendering engine may prioritize performance over this specific CSS feature. This can result in the background image scrolling with the rest of the content instead of remaining fixed.
To ensure a consistent experience across different devices, it's a good practice to test your site on multiple devices and browsers. If the fixed background image is crucial for your design, you can consider providing an alternative solution for devices where it may not work as expected. For example, you can use media queries to modify the background behavior or hide the image on smaller screens where the fixed property doesn't work as intended.
Overall, while the "fixed" background property generally works on iPhone 5 and newer models in Webflow, it's essential to account for potential variations in device/browser support and have a fallback plan in place.