To make a button in Webflow append the URL and scroll down the page upon clicking, you can make use of custom code and interactions.
1. First, give your button a unique class or ID to target it later.
2. Next, add a custom code embed to your Webflow project. You can do this by clicking on the "+" button in the Navigator panel and selecting "Custom Code." Place the embed wherever you want the code to be executed, either in the page's head or before the closing body tag.
3. Inside the custom code embed, you can add the following JavaScript code:
```javascript
```
Make sure to replace:
- `.your-button-class` with the actual class or ID of your button.
- `#section-name` with the ID of the section you want to scroll to.
4. Save your changes and publish your Webflow project.
With this code, when the button is clicked, it will prevent the default behavior (e.g., navigating to a new page), append the specified URL to the current URL, scroll smoothly to the targeted section, and update the URL in the address bar without refreshing the page.