Can I block scrolling on a Webflow page when the left menu is open? How can I achieve this?

Yes, you can disable page scrolling in Webflow when a left-side menu (like a mobile menu or sidebar) is open by using custom code and interactions.

1. Add a no-scroll Class in Your Project

• Create a new class in your Webflow project called no-scroll.
• Set the following styles:
• Overflow: Hidden on the Body element.
• You may need to set position: fixed and width: 100% to avoid unintended layout shifts.

2. Use Webflow Interactions to Toggle the Class

• Select your menu open trigger (e.g. hamburger icon or menu button).
• Go to the Interactions panel and create a Click Trigger.
• On first click:
• Add Class: no-scroll to the Body (select Body (All Pages) from the element selector).
• On second click (when closing the menu):
• Remove Class: no-scroll from the Body.

3. Alternative: Use Custom Code (if necessary)

If you need more control, you can add custom code:

• Go to: Page Settings > Before tag, and insert this:

  ```html

  ```

• Replace .your-menu-button with the actual class of your menu trigger.

• Ensure the no-scroll class exists in your Webflow styles with the styles mentioned above.

4. Test It on All Devices

• Responsive layouts may behave differently. Make sure to test the class toggle in mobile, tablet, and desktop breakpoints.
• If you're using Webflow's native Navbar component, make sure it’s not automatically managing scroll-lock—disable built-in dropdown behavior if needed.

Summary

To block scrolling when a left-side menu is open, create a no-scroll class with overflow: hidden and use Webflow interactions or custom JavaScript to toggle that class on the Body. This prevents the page behind the menu from scrolling while the menu is open.