How can I fix an element to scroll within a section in Webflow, similar to the animation used for the share function on the Webflow blog?

To fix an element to scroll within a section in Webflow—like the sticky "share" button on the Webflow blog—you can use position: sticky combined with section boundaries.

1. Set the Parent Section’s Position

• Select the section (or container) that wraps the element you want to keep fixed while scrolling.
• In the Style panel, make sure its position is set to relative (default). This defines the bounding box in which the sticky element will operate.

2. Apply Sticky Position to the Target Element

• Select the element you want to scroll within the section (e.g., the "share" box).
• Set its position to sticky.
• Set a top offset (e.g., top: 20px) to define how far from the top of the viewport it should stick.
• Ensure the element fits within the height of the section to avoid overflow issues.

3. Set Section Height for Bounding

• For the sticky effect to have a visible scroll range, the parent section should have sufficient vertical height (e.g., taller than the sticky element and viewport).
• You can control this with padding, margin, or nested content that increases section height.

4. Prevent Overflow or Clipping

• Ensure no parent element of the sticky item has overflow: hidden or overflow: scroll, as this can break the sticky behavior.
• Sticky only works within the scrollable area of its nearest scroll container.

5. Check Responsiveness

• On smaller breakpoints, you may want to disable or reposition the sticky element to avoid layout conflicts.
• You can use visibility settings or duplicate the element with alternate styling for mobile.

Summary

To create a scroll-within-section effect like the Webflow blog's share button, set the element to position: sticky, set a top offset, and wrap it in a relatively positioned section with adequate height. This allows the element to stay fixed during scroll, then unstick when the section ends.