Overview
What Stacking Cards (Will's Toolkit) is
This is a code snippet from Will Myers' Code Catalog inside Will's Toolkit, not a standalone plugin. It takes an ordinary Squarespace 7.1 List Section and turns its items into cards that stack on top of one another as the visitor scrolls, the agency-site effect where each panel slides up and settles over the last. The vendor page describes it in one line, use a List Section to create this stacking cards effect, files it under List Section and Scroll Effect, and dates the last update 30 April 2025. Only paid members can copy the code.
The old listing on this page described a drag and drop card builder. It is not that. Squarespace's List Section builds the cards; this snippet changes how they behave on scroll.
Who it suits
Existing Toolkit members who want a feature or process section with more motion than a static grid, and designers who already use the extension on client sites. Subscribing for one scroll effect makes little sense; the membership earns its keep only if you will use the extension, Robo-Will and the wider catalog.
Honest caveats
You are paying for a subscription, not a plugin. Scroll effects need testing on phones and can conflict with other scroll scripts on the page. Three to five cards read well; ten do not.
Setup
Log in to Will's Toolkit, open the snippet and add it through the Toolkit extension or paste it into code injection, which needs a Business (now Core) plan or higher. Membership is billed monthly or annually and covers the extension, every snippet, a personal library, the Robo-Will AI assistant and a Slack community.
Related guide: my roundup of the best Squarespace plugins in 2026, or the full plugins collection.
- Turns a Squarespace 7.1 List Section into cards that stack as visitors scroll
- Adds motion to feature, process and service sections without a separate plugin
- Uses the native List Section, so content stays editable in the normal editor
- Available to Will's Toolkit members through the Code Catalog
Full specifications
Specifications
Adds motion to feature, process and service sections without a separate plugin
Uses the native list section, so content stays editable in the normal editor
Available to will's toolkit members through the code catalog
Filed under the list section and scroll effect tags
Added through the toolkit browser extension or pasted into code injection
Membership includes robo-will, a slack community and a personal snippet library
Designers building agency-style feature sections
Sites with a short list of services or process steps
Squarespace 7.1 sites on the core plan or higher
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