Yes, you can block scrolling on a Webflow page when the left menu is open. To achieve this, you can use a combination of Webflow interactions and custom code.
Here's a step-by-step guide to achieve this:
1. Set up your left menu: Design and position your left menu component on your Webflow page. You can use a combination of Webflow's built-in elements (e.g., divs, buttons) and styles to create the desired menu layout.
2. Create an interaction for the left menu: In Webflow's Interactions panel, create a new interaction for your left menu. Set the interaction trigger to be when the left menu is opened. You can choose a trigger such as a button click or a mouse hover, based on your design preference.
3. Add an action to the interaction: Within the interaction, add an action to the "Start" or "While" state. Look for the "Scrolling" category and select the "Scroll" action. Set the target element to the body or any container that wraps your website content.
4. Disable scrolling on open: In the "Scroll" action, configure the settings to disable scrolling when the left menu is open. There should be an option to disable horizontal and/or vertical scrolling. Choose the appropriate settings based on your design requirements.
5. Enable scrolling on close: Add another action to the "Complete" or "End" state of the interaction. In this action, configure the scrolling settings to enable it once the left menu is closed. This will allow scrolling to resume when the menu is no longer active.
6. Apply the interaction: Once you've set up the interaction, apply it to your left menu component. You can do this by selecting the menu element and assigning the created interaction to it.
7. Publish and test: Finally, publish your Webflow project and test the scrolling behavior when the left menu is open. Make sure that scrolling is blocked as expected and resumes when the menu is closed.
In addition to the above steps, you may need to adjust the z-index of your left menu component to ensure it overlays the content correctly and doesn't interfere with other elements on the page.
If you encounter any issues or need further customization, you can also leverage custom code to achieve more advanced scrolling behaviors. Webflow provides the ability to add custom HTML, CSS, and JavaScript to your project, which can be used to fine-tune the scrolling behavior based on your specific requirements.