1. Enable ID Attribute In your Bubble editor, go to:
Settings → General → ✅ Check "Expose the option to add an ID attribute to HTML elements."

2. Add ID(s) to Text Elements
For each element you want to animate, enter a unique ID (e.g., link1, my-title) in the ID Attribute field in the property editor.

3. Drop the Plugin Element on the Page
Drag the plugin element into your page (preferably near the bottom of the page or inside a reusable element).

4. Configure Plugin Fields

element_id: A list of one or more element IDs (comma- or newline-separated)

thickness: Thickness of the underline in pixels (default: 2)

distance: Distance in pixels between the underline and the bottom of the element (default: 0)

animation_style: Direction of animation
→ Options: "left-to-right" (default), "right-to-left", "in-to-out"