Shadcn Expandable Feature Block Twelve

Block Twelve turns the feature picker into a clean numbered accordion. Each item carries a number, title, description, illustration, and support content, which makes it suitable for explaining a product workflow in sequence.

How the section is built

The section starts with A smarter way to build, then uses rows labeled 01, 02, and 03. The active row opens with a grid transition, shows supportive content such as IDE logos or compliance metrics, and renders the local illustration inline.

Interaction model

Autoplay advances every seven seconds, clicking a row resets the timer, and hovering the active row pauses the dashed progress animation. This gives visitors a readable feature section without taking control away from them.

Best fit

Use this React and Tailwind CSS block when your Next.js landing page needs progressive disclosure inside the feature section. It keeps the visitor on the same surface while still giving each product capability its own active state, illustration, and supporting copy.

Customization notes

The source subheading says four pillars even though there are three rows. Update that line along with the demo Shadcn quote before using the block in production.

Keep the shadcn UI block conventions intact when you adapt it: short trigger labels, real product copy, accurate media alt text, and enough responsive testing to confirm the expanded state still feels intentional on mobile and desktop.

Related Shadcn UI blocks

• Expandable Features Blocks

Start from Tailark

Preview Shadcn Expandable Feature Block Twelve