There could be several reasons why your navigation bar is invisible on mobile devices but visible on desktop. Here are some potential causes and solutions:

1. CSS Display Property: Check if there is a CSS rule that hides the navigation bar on mobile devices. One common way to hide elements on smaller screens is by using the CSS display property with a value of none. To fix this, locate the CSS rule responsible for hiding the navigation bar and modify it to ensure it is displayed on mobile devices.

2. Media Queries: Media queries allow you to apply different styles based on the device screen size. If there is a media query targeting mobile devices that is hiding the navigation bar, you'll need to modify it to ensure the bar is visible. Look for media queries that specifically target smaller screens and modify the CSS rules accordingly.

3. Z-Index: Another possible reason is that the navigation bar is being overlapped by another element due to the z-index property. Check if there are any overlapping elements, such as a header or a hero section, which may be covering the navigation bar on mobile devices. Adjust the z-index value of the navigation bar to ensure it appears above other elements.

4. Responsive Structure: It's also possible that the navigation bar is not properly structured to accommodate smaller screen sizes. Make sure the HTML structure of the navigation bar is responsive and adjusts to fit on smaller screens. Consider using a responsive navigation pattern, such as a hamburger menu or a condensed menu, that is specifically designed for mobile devices.

5. Visibility Settings: Verify that the visibility settings for the navigation bar are not set to be hidden on mobile devices. In some cases, website builders like Webflow provide options to hide specific elements on certain devices. Double-check these visibility settings in your Webflow project to ensure that the navigation bar is set to be visible on mobile devices.

By identifying and addressing these potential causes, you should be able to resolve the issue of your navigation bar being invisible on mobile devices while remaining visible on desktop. Remember to test your changes across different mobile devices and screen sizes to ensure consistent visibility.

Additional Questions

1. Why is my navigation bar not showing on mobile devices in Webflow?
2. How can I ensure my navigation menu is responsive and visible on all devices in Webflow?
3. What are some common CSS properties that can affect the visibility of a navigation bar on mobile devices in Webflow?