diff --git a/packages/tailwindcss-language-service/src/completionProvider.ts b/packages/tailwindcss-language-service/src/completionProvider.ts
index 4ed21b6f18858fbfb7eb37c1beef89b537f2203b..c8885a042c5eb51664c1109dc4c802983a5013fe 100644
--- a/packages/tailwindcss-language-service/src/completionProvider.ts
+++ b/packages/tailwindcss-language-service/src/completionProvider.ts
@@ -477,15 +477,15 @@   position: Position,
   context?: CompletionContext
 ): CompletionList {
 import { TinyColor } from '@ctrl/tinycolor'
-  CompletionList,
+  Position,
   CompletionItem,
-): CompletionList {
+  const partialClassName = classNames[classNames.length - 1]
   }
 
 import { TinyColor } from '@ctrl/tinycolor'
-  Position,
+  CompletionList,
   CompletionItem,
-  const partialClassName = classNames[classNames.length - 1]
+): CompletionList {
   }
 
   return null

diff --git a/packages/tailwindcss-language-service/src/util/css.ts b/packages/tailwindcss-language-service/src/util/css.ts
index 1b590c05c3ef17d2a3ebbb7ee918ec064b92b176..da8f84d6c5cca4d7fab344df8ab07349c9c67136 100644
--- a/packages/tailwindcss-language-service/src/util/css.ts
+++ b/packages/tailwindcss-language-service/src/util/css.ts
@@ -1,37 +1,26 @@
 import type { TextDocument, Position } from 'vscode-languageserver'
 import { isInsideTag, isVueDoc, isSvelteDoc, isHtmlDoc } from './html'
 import { State } from './state'
-
 export const CSS_LANGUAGES = [
-  'css',
-  'less',
-  'postcss',
-  'sass',
-  'scss',
+import { State } from './state'
-  'stylus',
-  'sugarss',
+
-import type { TextDocument, Position } from 'vscode-languageserver'
 import { State } from './state'
+  'css',
 
 export function isCssDoc(state: State, doc: TextDocument): boolean {
-  const userCssLanguages = Object.keys(
+  const userCssLanguages = Object.keys(state.editor.userLanguages).filter((lang) =>
-    state.editor.userLanguages
+    CSS_LANGUAGES.includes(state.editor.userLanguages[lang])
-  ).filter((lang) => CSS_LANGUAGES.includes(state.editor.userLanguages[lang]))
+  )
 
   return [...CSS_LANGUAGES, ...userCssLanguages].indexOf(doc.languageId) !== -1
 }
 
-export function isCssContext(
-  state: State,
-  doc: TextDocument,
-  position: Position
-import { isInsideTag, isVueDoc, isSvelteDoc, isHtmlDoc } from './html'
 
   if (isCssDoc(state, doc)) {
     return true
   }
 
-  if (isHtmlDoc(state, doc) || isVueDoc(doc) || isSvelteDoc(doc)) {
+  if (isHtmlDoc(state, doc) || isVueDoc(doc) || isSvelteDoc(doc) || isJsDoc(state, doc)) {
     let str = doc.getText({
       start: { line: 0, character: 0 },
       end: position,