unocss

Generate atomic CSS utilities on demand from HTML class names.

Updated Aug 23, 2026
One-click install
npx skills add https://github.com/ajiu9/skills --skill unocss-ajiu9
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: unocss
Source: https://github.com/ajiu9/skills/tree/main/skills/unocss
Command: npx skills add https://github.com/ajiu9/skills --skill unocss-ajiu9

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

UnoCSS eliminates manual CSS writing by generating atomic utilities on demand, enabling faster iteration and smaller bundles. It is an instant atomic CSS engine designed to be flexible and extensible, guided by presets, rules, variants, and themes.

Core Features & Use Cases

  • Instant atomic utilities generated from class names and HTML
  • Highly configurable via presets, rules, variants, and themes
  • Suitable for rapid prototyping, responsive design, and scalable theming

Quick Start

Install UnoCSS and import it in your project to start generating utilities from your HTML and class names.

Frequently Asked Questions about unocss

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How does generating atomic CSS on demand help with scalable styling?

Generating atomic CSS on demand solves scalable styling by creating utilities from class names, eliminating manual CSS maintenance and reducing bundle sizes. This enables faster prototyping and consistent design systems through configurable presets and themes.

How do I configure UnoCSS presets, rules, and variants for rapid prototyping?

Configure UnoCSS by defining presets, rules, variants, and themes to generate atomic utilities on demand. Import the engine into your project to automatically generate styles from HTML and class names for rapid prototyping.

Can I use atomic CSS utilities for responsive design and theming?

Yes, atomic CSS utilities support responsive design and scalable theming. UnoCSS generates utilities on demand from class names and HTML, allowing you to apply highly configurable presets, rules, variants, and themes for consistent design systems.

What is the best way to eliminate manual CSS writing in frontend projects?

The best way to eliminate manual CSS writing is using an instant atomic CSS engine like UnoCSS. It generates utilities on demand from your HTML, providing smaller bundles and faster iteration without maintaining large stylesheets.

When should I not use atomic CSS generators for styling?

You should avoid atomic CSS generators if your project requires traditional CSS methodologies or lacks support for build-time utility generation. UnoCSS relies on scanning HTML and class names to generate styles on demand.