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css.TailwindCSS

This is an experimental feature pending the release of TailwindCSS v4.0.

The functionality, configuration requirements, and documentation are subject to change at any time and may be not compatible with prior releases.

Prerequisites​

To use this function you must install the Tailwind CSS CLI v4.0 or later. You may install the CLI as an npm package or as a standalone executable. See the Tailwind CSS documentation for details.

Use npm to install the CLI prior to the v4.0 release of Tailwind CSS.

npm install --save-dev tailwindcss@next @tailwindcss/cli@next

Options​

minify : (bool) Whether to optimize and minify the output. Default is false.

optimize : (bool) Whether to optimize the output without minifying. Default is false.

inlineImports : (bool) Whether to enable inlining of @import statements. Inlining is performed recursively, but currently once only per file. It is not possible to import the same file in different scopes (root, media query, etc.). Note that this import routine does not care about the CSS specification, so you can have @import statements anywhere in the file. Default is false.

skipInlineImportsNotFound : (bool) When inlineImports is enabled, we fail the build if an import cannot be resolved. Enable this option to allow the build to continue and leave the import statement in place. Note that the inline importer does not process URL location or imports with media queries, so those will be left as-is even without enabling this option. Default is false.

Example​

Define a cache buster in your site configuration:

[[build.cachebusters]]
source = 'layouts/.*'
target = 'css'

Process the resource:

{{ with resources.Get "css/main.css" }}
  {{ $opts := dict "minify" true }}
  {{ with . | css.TailwindCSS $opts }}
    {{ if hugo.IsDevelopment }}
      <link rel="stylesheet" href="{{ .RelPermalink }}">
    {{ else }}
      {{ with . | fingerprint }}
        <link rel="stylesheet" href="{{ .RelPermalink }}" integrity="{{ .Data.Integrity }}" crossorigin="anonymous">
      {{ end }}
    {{ end }}
  {{ end }}
{{ end }}

The example above publishes the minified CSS file to public/css/main.css.

See this repository for more information about the integration with Tailwind CSS v4.0.