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Demo Lab

Live · Interface study

Web Foundry

Give an editorial layout longer copy and watch it adapt.

React / TypeScript / CSS Modules

Web Foundry editorial specimen reflowing a longer headline and supporting copy.
Preview captured September 13, 2026. Open the demo to interact.

Overview

A responsive editorial study that puts copy pressure on one real specimen. The same markup receives a short or long headline, follows its own available width, and rearranges its supporting notes only when the specimen is wide enough.

Before you try it

This is authored sample markup, not a website builder. It makes no network request, exports nothing, and resets on reload. The width control never claims more space than the specimen actually has.

What to try

  1. Give it more to say

    Replace the short headline with the longer authored version and watch the supporting copy yield in normal flow.

  2. Change the specimen width

    Open Layout controls below the specimen, then move the width control. The displayed number is the real clamped width, and typography and navigation respond to that container rather than the browser.

  3. Compare and restore

    Compare Paper and Clay, restore the short headline, or reset the study. Open full screen to inspect the same state with more available room.

Web Foundry · Interface Lab

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Responsive specimen

Web Foundry

Give this layout a longer headline.

Field NotesIssue 04 · Product practice

One useful change

Make room for the useful.

An editorial layout should follow the space it actually has, not the browser around it.

Working rule

Longer copy remains in normal flow and earns the room it needs.

Container rule

Supporting notes form two columns only when this specimen reaches 560 pixels.

Layout controls
Surface

Web Foundry ready.

How it works

The specimen owns its breakpoint
CSS container queries collapse the masthead locally and create two supporting columns only at 560 pixels. Container-relative type changes with the specimen itself.
Immediate, reversible feedback
React keeps width, surface, and copy mode in page memory. New copy replaces old copy in normal flow, while transform and opacity provide a short settle and the shared live region names the result.

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