这是vscode内置列表提供的at-rule-no-unknown规则。

为了摆脱它，你需要做以下事情:

1. 安装styelint扩展代码——Install -extension styelint . vcode - styelint

2. 安装styelint推荐配置

3.在vscode USER SETTINGS中添加这两行

"css.validate": false, // Disable default css built-in lint
"stylelint.enable": true, // Enable stylelint
"scss.validate": false, // Disable scss lint (optional if using scss)

4. 将这些行粘贴到项目根目录中名为.stylelintrc的文件中，如果它不存在，则创建它。更多关于stylelint配置的信息请访问这个链接:https://stylelint.io/user-guide/

{
  "extends": "stylelint-config-recommended",
  "rules": {
    "at-rule-no-unknown": [ true, {
      "ignoreAtRules": [
        "extends",
        "tailwind"
      ]
    }],
    "block-no-empty": null,
    "unit-allowed-list": ["em", "rem", "s"]
  }
}

经过多次测试: POSTCSS和STYLUS语法高亮显示，删除警告，但CSS智能是不完整的，不显示第一实用工具类顺风

我在VSCode中安装了'language-stylus'插件

>用户设置:

"files.associations": {
   "* .css": "stylus"
 },

再见!

CSS智能是不完整的

添加VSCode扩展

添加语言支持

我的建议是安装postCSS语言支持，然后重命名tailwind.css为tailwind。然后PCSS更改包中的引用。Json脚本(或任何构建脚本你正在使用顺风)顺风。PCSS从顺风。css和一切应该工作正常。

@apply规则兼容postCSS: https://github.com/tailwindcss/tailwindcss/issues/325

2022 - 05年更新

官方的Tailwind CSS智能感知扩展现在扩展了内置的CSS语言模式来修复这些lint警告，而不会失去任何VS Code的默认智能感知功能。

查看推荐的VS代码设置部分，为工作空间中的所有CSS文件启用此功能。

如果您不想安装额外的扩展，我在下面保留了我最初的答案，但自从v0.8.0以来，它不再与内置的CSS支持冲突，因此这是我推荐的方法。

没有扩展的旧答案

Visual Studio Code允许您为CSS语言服务定义自定义数据。

例如，在工作空间的.vscode/settings中。Json，你可以添加:

{
  "css.customData": [".vscode/css_custom_data.json"]
}

然后在。vscode/css_custom_data中。json添加:

{
  "atDirectives": [
    {
      "name": "@tailwind",
      "description": "Use the @tailwind directive to insert Tailwind’s `base`, `components`, `utilities`, and `screens` styles into your CSS.",
      "references": [
        {
          "name": "Tailwind’s “Functions & Directives” documentation",
          "url": "https://tailwindcss.com/docs/functions-and-directives/#tailwind"
        }
      ]
    }
  ]
}

请注意，您可能需要重新加载VS Code窗口以获取更改。

下面是.vscode/css_custom_data的副本。Json，它包含了所有带有简短用法片段的指令(反过来在vs code中突出显示语法):

{
  "version": 1.1,
  "atDirectives": [
    {
      "name": "@tailwind",
      "description": "Use the `@tailwind` directive to insert Tailwind's `base`, `components`, `utilities` and `screens` styles into your CSS.",
      "references": [
        {
          "name": "Tailwind Documentation",
          "url": "https://tailwindcss.com/docs/functions-and-directives#tailwind"
        }
      ]
    },
    {
      "name": "@responsive",
      "description": "You can generate responsive variants of your own classes by wrapping their definitions in the `@responsive` directive:\n```css\n@responsive {\n  .alert {\n    background-color: #E53E3E;\n  }\n}\n```\n",
      "references": [
        {
          "name": "Tailwind Documentation",
          "url": "https://tailwindcss.com/docs/functions-and-directives#responsive"
        }
      ]
    },
    {
      "name": "@screen",
      "description": "The `@screen` directive allows you to create media queries that reference your breakpoints by **name** instead of duplicating their values in your own CSS:\n```css\n@screen sm {\n  /* ... */\n}\n```\n…gets transformed into this:\n```css\n@media (min-width: 640px) {\n  /* ... */\n}\n```\n",
      "references": [
        {
          "name": "Tailwind Documentation",
          "url": "https://tailwindcss.com/docs/functions-and-directives#screen"
        }
      ]
    },
    {
      "name": "@variants",
      "description": "Generate `hover`, `focus`, `active` and other **variants** of your own utilities by wrapping their definitions in the `@variants` directive:\n```css\n@variants hover, focus {\n   .btn-brand {\n    background-color: #3182CE;\n  }\n}\n```\n",
      "references": [
        {
          "name": "Tailwind Documentation",
          "url": "https://tailwindcss.com/docs/functions-and-directives#variants"
        }
      ]
    }
  ]
}

以下是结果预览:

唯一缺少的指令是@apply，因为它是在CSS属性级别声明的。CSS语言服务可能不会在属性级别上使用atRules，也不会接收这样的指令。

如果你使用VS Code，你可以使用PostCSS语言支持插件。

确保将scss文件与PostCSS关联。