How to add a fixed back-to-top button in Webflow that fades in after scrolling?

Adding a Fixed Back-to-Top Button in Webflow with Fade-In Effect

Creating a back-to-top button that appears after scrolling down a specific amount is a great way to enhance user experience, especially on long pages. This guide will walk you through adding a fixed back-to-top button in Webflow that fades in after scrolling.

Prerequisites

• A Webflow account with a project set up for this implementation.
• Basic understanding of Webflow’s Designer and Interactions functionalities.
• Familiarity with adding custom CSS and JavaScript if needed.

Setting Up the Back-to-Top Button

• Open your project in Webflow Designer.
• On the left pane, click on the "+" button to add a new element. Choose "Button" from the elements panel to add to your page.
• Inside the 'Style Panel' (right side), give your button a class, e.g., `back-to-top-button`.
• Position your button using the positioning options in the style panel. You might want to fix it to the bottom-right corner. Do this by setting the 'Position' to 'Fixed' and adjusting the pixel values.
• Style your button by setting the background color, text color, padding, border, etc., as per your design preferences.

Adding the Fade-In Effect Using Webflow Interactions

• With the button still selected, navigate to the 'Interactions' panel (lightning bolt icon on the right side).
• Create a new On-Page Load Interaction to set initial button states:
• Click on “Page Trigger” and choose "Page Load".
• Add an animation and select “Hide/Show” to hide the button on page load by setting the opacity to 0%.
• Now, create an animation to control when the button appears on scroll:
• Click on the “Page Trigger” and select "Scroll".
• Select "While Scrolling in View" to make the actions dependent on scrolling.
• Create a new animation and name it (e.g., Fade In Button).
• Add a new step: Set opacity action from the start (0% opacity) to finish (100% opacity) after scrolling a certain percentage down the page, e.g., 30% down the page.

Adding Click Interaction to Smooth Scroll to Top

• Select your back-to-top button.
• Navigate to the 'Interactions' panel and create a "Mouse Click (Tap)" interaction for smooth scrolling to the top:
• Add an animation such as "Scroll to Top". Configurations may vary based on JavaScript additions, but a simple step for smooth scroll could involve adding custom JS via the Webflow custom code section.
• Add `