Tailwind CSS Extra

lang.tailwind adds the Tailwind CSS language server on its own, without the rest of the lang.web stack. You get class completion with color swatches, hover previews of the generated CSS, and @apply / class-conflict diagnostics.

If you already enable lang.web, the Tailwind server is included there and you do not need this extra — enable this one when you want Tailwind without the HTML, CSS, Emmet, and Prettier pieces.

Enable it

-- ~/.config/blak/lua/blak/user.lua
return {
  extras = {
    enabled = {
      "lang.tailwind",
    },
  },
}

Or enable it interactively:

:BlakExtras enable lang.tailwind

What it adds

Surface	Contribution
LSP	tailwindcss (installs as tailwindcss-language-server through Mason)

The server config ships two quality-of-life settings:

• classAttributes covers class, className, class:list, classList, and ngClass, so completion works in React, Astro, Solid, and Angular attribute styles.
• classFunctions covers clsx, cn, cva, cx, tw, and twMerge, so completion and lint also work inside those call sites.

Override either through lsp.servers.tailwindcss in user.lua:

return {
  extras = { enabled = { "lang.tailwind" } },
  lsp = {
    servers = {
      tailwindcss = {
        settings = {
          tailwindCSS = {
            classFunctions = { "tv" },
          },
        },
      },
    },
  },
}

Notes

• The server attaches only when it detects a Tailwind config in the project, so there is no cost on non-Tailwind codebases.
• classFunctions needs tailwindcss-language-server 0.14 or newer, which is what Mason installs.
• Pair it with editor.emmet for VS Code-style .flex.gap-2 abbreviation expansion.

Install and verify

:BlakToolsInstall
:BlakDoctor

Open a file in a Tailwind project and check :LspInfo for tailwindcss. Typing inside a class or className attribute should complete Tailwind classes with color swatches.

Disable it

Remove "lang.tailwind" from extras.enabled or run :BlakExtras disable lang.tailwind, then restart Blak.