解决tailwind在vscode下的 Unknown at rule @tailwind 警告

解决方案

在项目的.vscode文件夹，新建settings.json

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

在项目的.vscode文件夹，新建tailwindcss.json

{
    "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": "@apply",
        "description": "Use the `@apply` directive to inline any existing utility classes into your own custom CSS. This is useful when you find a common utility pattern in your HTML that you’d like to extract to a new component.",
        "references": [
          {
            "name": "Tailwind Documentation",
            "url": "https://tailwindcss.com/docs/functions-and-directives#apply"
          }
        ]
      },
      {
        "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"
          }
        ]
      }
    ]
  }
  

重启VSCode

附注说明

遇到其他的Unknown at rule @xxx的警告，也可以使用该方式解决