How does this skill improve an AI agent's ability to write CSS?

This skill provides a pre-configured workflow and an optimized Node script that allows AI agents to calculate perfect fluid scaling values (clamp) for typography and spacing without manual mathematical errors.

Which AI agents and CSS frameworks are supported?

The skill is compatible with any AI coding agent that has a filesystem or terminal access (such as Claude Engineer, Aider, or Cursor) and supports plain CSS, CSS Custom Properties, and Tailwind CSS v3/v4 configurations.

Are the fluid values generated by this skill accessible?

Yes, the generated clamp values utilize rem units and avoid bare viewport units for text, ensuring your designs comply with WCAG 1.4.4 accessibility standards regarding 2.5x browser zoom.

What exactly is included in the purchase?

You will receive the proprietary system instructions for the agent, the specialized Node calculation script, and documentation on how to integrate the skill into your existing developer workflow.

How difficult is the installation and setup process?

Setting up is as simple as adding the provided script to your project directory and giving your AI agent the specific instructions included; no complex API keys or external subscriptions are required.

CSS Clamp – fluid typography and spacing

Ran node scripts/clamp.mjs for each size between 360px and 1440px. Bounds and intercepts are in rem, so the text still scales with browser zoom, and every max stays under 2.5x its min (WCAG 1.4.4).

Token	Min	Max	Value
body	16px	18px	`clamp(1rem, 0.958rem + 0.185vw, 1.125rem)`
h3	20px	28px	`clamp(1.25rem, 1.083rem + 0.741vw, 1.75rem)`
h2	24px	40px	`clamp(1.5rem, 1.167rem + 1.481vw, 2.5rem)`
h1	36px	64px	`clamp(2.25rem, 1.667rem + 2.593vw, 4rem)`

@import "tailwindcss";

@theme {
  --text-body: clamp(1rem, 0.958rem + 0.185vw, 1.125rem);
  --text-h3: clamp(1.25rem, 1.083rem + 0.741vw, 1.75rem);
  --text-h2: clamp(1.5rem, 1.167rem + 1.481vw, 2.5rem);
  --text-h1: clamp(2.25rem, 1.667rem + 2.593vw, 4rem);
}

Use them as text-body, text-h3, text-h2 and text-h1, for example <h1 class="text-h1 font-bold">.

Check: at 360px the h1 is 1.667rem + 2.593vw = 26.67px + 9.33px = 36px. At 1440px it is 26.67px + 37.34px = 64px.

Next steps: pair each size with a line height (around 1.1 to 1.2 for headings), and for components inside a sidebar or card, rerun with --unit cqi so they scale with their container instead of the viewport.

About this skill

Teaches AI coding agents to generate correct, accessible CSS clamp() values for fluid typography, spacing and complete type scales. The agent runs a bundled Node script instead of doing the maths by hand. It follows accessibility rules (rem bounds, no bare vw for text, the 2.5x zoom rule for WCAG 1.4.4) and outputs plain CSS, custom properties or Tailwind CSS v3/v4 tokens.

CSS Clamp – fluid typography and spacing