How can I create a fixed menu on Webflow's mobile version without causing page scroll behind the menu? Disabling the scroll offset option doesn't seem to work. Placing the navbar at the top also doesn't resolve the issue. What could be the problem with this option?

You're trying to create a fixed mobile menu in Webflow that prevents the background from scrolling when open, but disabling scroll offset and placing the menu at the top didn't fix the issue. This is likely related to missing steps around locking the body scroll during menu interaction.

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1. Understand the Scroll Problem

• When the mobile menu (often a full-screen nav or dropdown) opens, the body remains scrollable unless you explicitly disable scrolling.
• Disabling the Scroll offset inside the Navbar component only affects the smooth-scroll jump, not background page lock.

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2. Verify Your Menu Is Using a Fixed Position

• Select your mobile menu wrapper (usually nav-menu or similar) in Webflow.
• In the Style panel, make sure:
• Position is set to Fixed.
• Top: 0, Left: 0, and Z-index is high (e.g., 9999).
• Full viewport height with Height: 100vh.

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3. Lock the Scroll with Interaction

You must manually prevent body scrolling when the menu opens by adding an interaction using Webflow's interactions panel:

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• Create a Page Trigger or Click Trigger on the hamburger menu icon.
• Add an Action: Element → Body (All Pages).
• Choose Add Class and create a class named “no-scroll.”

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Then in your CSS within Webflow:

• Create a class called no-scroll.
• Set:  
• Overflow: hidden
• Make sure it applies to the Body (All Pages).

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Important: Add another step to your interaction to Remove class no-scroll when the menu closes (e.g., on click of the close icon or link click).

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4. Check for Interference from Navbar Component

If you're using Webflow's default Navbar component, it has built-in behaviors that may override custom actions:

• Consider replacing the native Navbar with custom divs and buttons for full control.
• Otherwise, ensure your scroll-lock interaction triggers override default Webflow Navbar behaviors.

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5. Test on Published Site (Not Only Designer)

• Webflow Designer may not reflect scroll behavior accurately.
• Publish the site and test on a real mobile browser (or responsive mode).

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Summary

To prevent background scrolling when a fixed mobile menu is open, use an interaction to add a no-scroll class (with overflow: hidden) to the Body, and remove it when the menu closes. Disabling Scroll offset and using Fixed layout alone won't stop background scrolling—manual scroll locking is required.