Add docs for tailwind css mode

docs/src/languages/tailwindcss.md 🔗

@@ -37,6 +37,28 @@ Languages which can be used with Tailwind CSS in Zed:
 - [Svelte](./svelte.md)
 - [Vue](./vue.md)
 
+### Using Tailwind CSS Mode in CSS Files
+
+Zed includes support for the Tailwind CSS language mode, which provides full CSS IntelliSense support even when using Tailwind-specific at-rules like `@apply`, `@layer`, and `@screen`.
+
+To use the Tailwind CSS language mode for CSS files, add the following to `languages` section of your `settings.json`:
+
+```json [settings]
+{
+  "languages": {
+    "CSS": {
+      "language_servers": [
+        "tailwindcss-intellisense-css",
+        "!vscode-css-language-server",
+        "..."
+      ]
+    }
+  }
+}
+```
+
+The `tailwindcss-intellisense-css` language server serves as an alternative to the default CSS language server, maintaining all standard CSS IntelliSense features while adding support for Tailwind-specific syntax.
+
 ### Prettier Plugin
 
 Zed supports Prettier out of the box, which means that if you have the [Tailwind CSS Prettier plugin](https://github.com/tailwindlabs/prettier-plugin-tailwindcss) installed, adding it to your Prettier configuration will make it work automatically:

Change summary

Detailed changes

docs/src/languages/tailwindcss.md 🔗