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963 markdown files reformatted with the repository's pinned prettier so pnpm format:check covers the folded tree like every other repo file. The formatter's embedded-language pass also normalized code fences (TS semicolons, closed HTML tags in examples, lowercased CSS hex colors, one renumbered list that skipped an index). Alphanumeric token deltas vs the fold commit were audited file-by-file; all are formatter-equivalent markup normalizations plus the four sanitized skills.
65 lines
5.5 KiB
Markdown
65 lines
5.5 KiB
Markdown
---
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name: unocss
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description: UnoCSS instant atomic CSS engine, superset of Tailwind CSS. Use when configuring UnoCSS, writing utility rules, shortcuts, or working with presets like Wind, Icons, Attributify.
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metadata:
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author: Anthony Fu
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version: '2026.1.28'
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source: Generated from https://github.com/unocss/unocss, scripts located at https://github.com/antfu/skills
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---
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UnoCSS is an instant atomic CSS engine designed to be flexible and extensible. The core is un-opinionated - all CSS utilities are provided via presets. It's a superset of Tailwind CSS, so you can reuse your Tailwind knowledge for basic syntax usage.
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**Important:** Before writing UnoCSS code, agents should check for `uno.config.*` or `unocss.config.*` files in the project root to understand what presets, rules, and shortcuts are available. If the project setup is unclear, avoid using attributify mode and other advanced features - stick to basic `class` usage.
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> The skill is based on UnoCSS 66.x, generated at 2026-01-28.
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## Core
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| Topic | Description | Reference |
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| -------------------- | --------------------------------------------------------- | ------------------------------------------------ |
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| Configuration | Config file setup and all configuration options | [core-config](references/core-config.md) |
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| Rules | Static and dynamic rules for generating CSS utilities | [core-rules](references/core-rules.md) |
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| Shortcuts | Combine multiple rules into single shorthands | [core-shortcuts](references/core-shortcuts.md) |
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| Theme | Theming system for colors, breakpoints, and design tokens | [core-theme](references/core-theme.md) |
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| Variants | Apply variations like hover:, dark:, responsive to rules | [core-variants](references/core-variants.md) |
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| Extracting | How UnoCSS extracts utilities from source code | [core-extracting](references/core-extracting.md) |
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| Safelist & Blocklist | Force include or exclude specific utilities | [core-safelist](references/core-safelist.md) |
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| Layers & Preflights | CSS layer ordering and raw CSS injection | [core-layers](references/core-layers.md) |
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## Presets
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### Main Presets
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| Topic | Description | Reference |
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| ------------ | ----------------------------------------------------------- | ------------------------------------------ |
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| Preset Wind3 | Tailwind CSS v3 / Windi CSS compatible preset (most common) | [preset-wind3](references/preset-wind3.md) |
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| Preset Wind4 | Tailwind CSS v4 compatible preset with modern CSS features | [preset-wind4](references/preset-wind4.md) |
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| Preset Mini | Minimal preset with essential utilities for custom builds | [preset-mini](references/preset-mini.md) |
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### Feature Presets
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| Topic | Description | Reference |
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| ------------------ | --------------------------------------------------- | ------------------------------------------------------ |
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| Preset Icons | Pure CSS icons using Iconify with any icon set | [preset-icons](references/preset-icons.md) |
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| Preset Attributify | Group utilities in HTML attributes instead of class | [preset-attributify](references/preset-attributify.md) |
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| Preset Typography | Prose classes for typographic defaults | [preset-typography](references/preset-typography.md) |
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| Preset Web Fonts | Easy Google Fonts and other web fonts integration | [preset-web-fonts](references/preset-web-fonts.md) |
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| Preset Tagify | Use utilities as HTML tag names | [preset-tagify](references/preset-tagify.md) |
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| Preset Rem to Px | Convert rem units to px for utilities | [preset-rem-to-px](references/preset-rem-to-px.md) |
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## Transformers
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| Topic | Description | Reference |
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| --------------- | ----------------------------------------------------- | ------------------------------------------------------------------------ |
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| Variant Group | Shorthand for grouping utilities with common prefixes | [transformer-variant-group](references/transformer-variant-group.md) |
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| Directives | CSS directives: @apply, @screen, theme(), icon() | [transformer-directives](references/transformer-directives.md) |
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| Compile Class | Compile multiple classes into one hashed class | [transformer-compile-class](references/transformer-compile-class.md) |
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| Attributify JSX | Support valueless attributify in JSX/TSX | [transformer-attributify-jsx](references/transformer-attributify-jsx.md) |
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## Integrations
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| Topic | Description | Reference |
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| ---------------- | ------------------------------------------------------- | ---------------------------------------------------- |
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| Vite Integration | Setting up UnoCSS with Vite and framework-specific tips | [integrations-vite](references/integrations-vite.md) |
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| Nuxt Integration | UnoCSS module for Nuxt applications | [integrations-nuxt](references/integrations-nuxt.md) |
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