How can I prevent background scrolling when the mobile menu is overlayed in Webflow?

TL;DR
  • In Webflow, prevent background scrolling by adding custom CSS for overflow: hidden in the Head Code section and using JavaScript in the Body Code to toggle this class when the menu is opened or closed.
  • Use a click event listener on the menu button to add or remove a menu-open class on the body element, and publish the project to apply changes.

To prevent background scrolling when your mobile menu is open in Webflow, you'll need to apply some custom code to control the overflow behavior.

1. Add Custom Code to Head Section

  • Go to Project Settings and navigate to the Custom Code tab.
  • In the Head Code section, paste the following CSS:

  ```css

  <style>

    .menu-open {

      overflow: hidden;

    }

  </style>

  ```

2. Add Custom Code to Body Section

  • In the Body Code section of the Custom Code tab, use the following JavaScript within a <script> tag:

  ```html

  <script>

    document.addEventListener('DOMContentLoaded', function() {

      const menuButton = document.querySelector('.menu-button-class'); // Replace with your menu button's class

      const body = document.body;

      menuButton.addEventListener('click', function() {

        if(body.classList.contains('menu-open')) {

          body.classList.remove('menu-open');

        } else {

          body.classList.add('menu-open');

        }

      });

    });

  </script>

  ```

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

3. Publish Your Project

  • Once the custom code is added, publish your project to see the changes take effect.

Summary

To prevent background scrolling when a mobile menu is open in Webflow, add custom CSS to control overflow in the Head Code, and use JavaScript in the Body Code to toggle a class on the body element when the menu button is clicked. This effectively stops background scrolling by setting overflow: hidden on the body.

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