How do I make a contact-slide-in-sidebar scrollable in Webflow on mobile devices? Also, how can I coordinate the actions of two triggers so they don't bug when opening and closing the sidebar?
TL;DR
- Set sidebar height to 100vh and overflow to auto or scroll for mobile scrollability.
- Use a single class toggle or coordinated animation for open/close triggers to avoid conflicts and ensure smooth sidebar behavior.
To make your contact slide-in sidebar scrollable on mobile and handle multiple triggers without bugs, follow these structured steps.
1. Make Sidebar Scrollable on Mobile
- Select the Sidebar Element in Webflow’s Designer.
- In the Style Panel, set its height to 100vh (viewport height) to ensure it covers the full mobile screen.
- Set Overflow to Auto or Scroll:
- This ensures that if the content exceeds the viewport height, users can scroll through it.
- If you’re using a div wrapper inside the slide-in, apply the scroll property to that wrapper instead.
- Test on Webflow’s mobile preview mode and a real mobile device to ensure smooth scrolling.
2. Coordinate Two Triggers Without Conflicts
If you have two triggers (e.g., a menu button and a close button) controlling the sidebar, improper configuration can cause state bugs.
- Use a single interaction that toggles the visibility of the sidebar:
- Instead of applying “Show Sidebar” on one button and “Hide Sidebar” on another separately, use an interaction that checks the sidebar’s current state (e.g., using an add/remove class toggle).
- Recommended Setup:
- Trigger 1 (Open Button) → On Click: adds class like
sidebar-open, animates sidebar in. - Trigger 2 (Close Button) → On Click: removes class
sidebar-open, animates sidebar out. - Use Webflow’s interactions panel (IX2) to create a custom animation timeline:
- Group all necessary actions (e.g., move sidebar, fade background, lock scrolling) into a single interaction.
- Assign this timeline to both triggers, but using different start actions (e.g., "Start Animation A" vs. "Start Animation B").
3. Prevent Double Interactions
- Avoid setting interactions on both the element itself and parent containers—this can cause both to execute and create visual glitches.
- If you must use two separate triggers, use conditions in custom code (optional) to check if the sidebar is already open before toggling.
Summary
Make the sidebar scrollable on mobile by setting its height to 100vh and enabling overflow: auto or scroll. To prevent trigger bugs, use a coordinated animation or class toggle system, with both triggers referencing the sidebar’s visibility state rather than running separate animations.