Does Webflow support built-in read more/less expanding div functionality for use with the CMS? Specifically, I want to have Events with a limited description of 50 characters, and a read more link that reveals the rest of the text without the need for coding. Is this possible in Webflow?

Yes, Webflow does support a built-in read more/less expanding div functionality for use with the CMS. To achieve this, you can use Webflow's Interactions feature.

Here's how you can implement it:

1. Set up your CMS collection: Create a collection called "Events" with a field for the limited description (e.g., 50 characters) and another field for the full description.

2. Design your dynamic template: Create a dynamic template for your "Events" collection page. Place a div block for the limited description and another div block for the full description. You can style these div blocks as needed.

3. Setup the interactions: Select the div block for the limited description and click on the "Add Interaction" button in the Interactions panel. Choose the "While page is scrolling" trigger and set the interaction to display the full description div block when the trigger point is reached.

4. Style the limited description: By default, the limited description will show all 50 characters. You can use CSS to truncate the text and add an ellipsis if needed. For example, you can use the following CSS:

```css
.limited-description {
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
}
```

5. Bind CMS data: Bind the limited description field from your CMS to the limited description div block using the dynamic data panel.

6. Bind read more link: Add a link inside or below the limited description block with the text "Read More" and set its link destination to the dynamic template page for the specific event.

By following these steps, you'll achieve the desired functionality where the limited description is initially shown, and the full description can be revealed when the user clicks on the "Read More" link. No additional coding is required.