Make any element become "sticky" based on the visibility of another "trigger" element inside the page.
Whenever the "trigger" element is no longer visible inside the page (for example because the user scrolled down), the element you marked as "sticky" will stop moving and will remain still until the "trigger" element becomes visible once again.
See the plugin in the editor:
https://bubble.io/page?id=plugin-playground&name=sticky-element&tab=tabs-1