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chenjiahan merged 1 commit into from
Jul 14, 2025
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docs: prefer to use the postcss plugin of unocss #5594

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64 changes: 26 additions & 38 deletions website/docs/en/guide/styling/unocss.mdx
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[UnoCSS](https://unocss.dev/) is the instant atomic CSS engine, that is designed to be flexible and extensible. The core is un-opinionated, and all the CSS utilities are provided via presets.

You can integrate UnoCSS in Rsbuild via [@unocss/webpack](https://npmjs.com/package/@unocss/webpack).
You can integrate UnoCSS in Rsbuild via PostCSS plugins.

## Installing UnoCSS

You need to install `@unocss/webpack` first.
You need to install `unocss` and `@unocss/postcss` first.

import { PackageManagerTabs } from '@theme';

<PackageManagerTabs command="add @unocss/webpack -D" />
<PackageManagerTabs command="add unocss @unocss/postcss -D" />

## Configuring plugin
## Configuring PostCSS

Register the `UnoCSSRspackPlugin` plugin in [tools.rspack](/config/tools/rspack):
You can register the `unocss` PostCSS plugin through [postcss.config.mjs](https://www.npmjs.com/package/postcss-loader#config) or [tools.postcss](/config/tools/postcss).

```ts title="rsbuild.config.ts"
import { defineConfig } from '@rsbuild/core';
import { UnoCSSRspackPlugin } from '@unocss/webpack/rspack';
```js title="postcss.config.mjs"
import UnoCSS from '@unocss/postcss';

export default defineConfig({
tools: {
rspack: {
plugins: [
UnoCSSRspackPlugin({
// options
}),
],
},
},
});
export default {
plugins: [UnoCSS()],
};
```

You can add UnoCSS Presets via the options of `UnoCSSRspackPlugin`, for example:
Rsbuild has integrated [autoprefixer](https://github.com/postcss/autoprefixer), so you only need to register the `UnoCSS` plugin.

```ts title="rsbuild.config.ts"
import { defineConfig } from '@rsbuild/core';
import { pluginReact } from '@rsbuild/plugin-react';
import { UnoCSSRspackPlugin } from '@unocss/webpack/rspack';
import { presetAttributify } from '@unocss/preset-attributify';
import { presetUno } from '@unocss/preset-uno';
## Configuring UnoCSS

Create a `uno.config.ts` file in the root directory of your project and add the following content:

```js title="uno.config.ts"
import { defineConfig, presetUno } from 'unocss';

export default defineConfig({
plugins: [pluginReact()],
tools: {
rspack: {
plugins: [
UnoCSSRspackPlugin({
presets: [presetUno(), presetAttributify()],
}),
],
},
content: {
filesystem: ['./src/**/*.{html,js,ts,jsx,tsx}'],
},
presets: [presetUno()],
});
```

Expand All @@ -62,12 +47,15 @@ The above configuration is for reference only and can be modified to suit the ne

## Importing CSS

In the JavaScript entry file, import `uno.css`:
Add the `@unocss` directives in your CSS entry file:

```js title="main.js"
import 'uno.css';
```css title="main.css"
@unocss preflights;
@unocss default;
```

Depending on your needs, you can selectively import the CSS styles provided by UnoCSS. Please refer to the [unocss documentation](https://unocss.dev/integrations/postcss#usage) for detailed usage of the UnoCSS.

## Done

You have now completed all the steps to integrate UnoCSS in Rsbuild!
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62 changes: 24 additions & 38 deletions website/docs/zh/guide/styling/unocss.mdx
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[UnoCSS](https://unocss.dev/) 是一个灵活可扩展的原子化的 CSS 引擎，所有 CSS 工具类都是通过 preset 提供的。

你可以通过 [@unocss/webpack](https://npmjs.com/package/@unocss/webpack) 插件来在 Rsbuild 中接入 UnoCSS。
你可以通过 PostCSS 插件来在 Rsbuild 中接入 UnoCSS。

## 安装 UnoCSS

首先，你需要安装 `@unocss/webpack`。
首先，你需要安装 `unocss` 和 `@unocss/postcss`。

import { PackageManagerTabs } from '@theme';

<PackageManagerTabs command="add @unocss/webpack -D" />
<PackageManagerTabs command="add unocss @unocss/postcss -D" />

## 配置插件
## 配置 PostCSS

在 [tools.rspack](/config/tools/rspack) 中注册 UnoCSS 的插件：
你可以通过 [postcss.config.mjs](https://www.npmjs.com/package/postcss-loader#config) 或 [tools.postcss](/config/tools/postcss) 来注册 `unocss` 的 PostCSS 插件。

```ts title="rsbuild.config.ts"
import { defineConfig } from '@rsbuild/core';
import { UnoCSSRspackPlugin } from '@unocss/webpack/rspack';
```js title="postcss.config.mjs"
import UnoCSS from '@unocss/postcss';

export default defineConfig({
tools: {
rspack: {
plugins: [
UnoCSSRspackPlugin({
// options
}),
],
},
},
});
export default {
plugins: [UnoCSS()],
};
```

通过 `UnoCSSRspackPlugin` 的选项可以添加 UnoCSS 的 Presets，例如：
## 配置 UnoCSS

```ts title="rsbuild.config.ts"
import { defineConfig } from '@rsbuild/core';
import { pluginReact } from '@rsbuild/plugin-react';
import { UnoCSSRspackPlugin } from '@unocss/webpack/rspack';
import { presetAttributify } from '@unocss/preset-attributify';
import { presetUno } from '@unocss/preset-uno';
在当前项目的根目录创建 `uno.config.ts` 文件，并添加以下内容：

```js title="uno.config.ts"
import { defineConfig, presetUno } from 'unocss';

export default defineConfig({
plugins: [pluginReact()],
tools: {
rspack: {
plugins: [
UnoCSSRspackPlugin({
presets: [presetUno(), presetAttributify()],
}),
],
},
content: {
filesystem: ['./src/**/*.{html,js,ts,jsx,tsx}'],
},
presets: [presetUno()],
});
```

Expand All @@ -62,12 +45,15 @@ export default defineConfig({

## 引入 CSS

在 JavaScript 入口文件中引用 `uno.css`：
在 CSS 入口文件中添加 `@unocss` 指令：

```js title="main.js"
import 'uno.css';
```css title="main.css"
@unocss preflights;
@unocss default;
```

根据需求不同，你可以选择性地导入 UnoCSS 提供的 CSS 样式。请参考 [UnoCSS 文档](https://unocss.dev/integrations/postcss#usage) 来了解 `@unocss` 指令的详细用法。

## 完成

你已经完成了在 Rsbuild 中接入 UnoCSS 的全部步骤！
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