diff --git a/packages/tailwindcss-class-names/src/extractClassNames.mjs b/packages/tailwindcss-class-names/src/extractClassNames.mjs
index df4559939aba242c977b6be4adea01cfe05adb47..4ccb6622101ef1538bfffa21842e3265d0706a23 100644
--- a/packages/tailwindcss-class-names/src/extractClassNames.mjs
+++ b/packages/tailwindcss-class-names/src/extractClassNames.mjs
@@ -55,16 +55,7 @@     const classNames = getClassNamesFromSelector(rule.selector)
 
     const decls = {}
     rule.walkDecls((decl) => {
-      if (decls[decl.prop]) {
-        decls[decl.prop] = [
-          ...(Array.isArray(decls[decl.prop])
-            ? decls[decl.prop]
-            : [decls[decl.prop]]),
-          decl.value,
-        ]
-      } else {
-        decls[decl.prop] = decl.value
-      }
+      decls[decl.prop] = decl.value
     })
 
     let p = rule
diff --git a/packages/tailwindcss-class-names/tests/extractClassNames.test.js b/packages/tailwindcss-class-names/tests/extractClassNames.test.js
index fe8e04bf6ba717f7e2e1a52a79b06cca78fbbe7a..7e7b6471ff2ee0ba50de454d6743490a152e5e01 100644
--- a/packages/tailwindcss-class-names/tests/extractClassNames.test.js
+++ b/packages/tailwindcss-class-names/tests/extractClassNames.test.js
@@ -350,24 +350,3 @@       ],
     },
   })
 })
-
-test('processes multiple properties of the same name', async () => {
-  const result = await processCss(`
-    .bg-red {
-      background-color: blue;
-      background-color: red;
-    }
-  `)
-
-  expect(result).toEqual({
-    context: {},
-    classNames: {
-      'bg-red': {
-        __rule: true,
-        __context: [],
-        __scope: null,
-        'background-color': ['blue', 'red'],
-      },
-    },
-  })
-})
diff --git a/packages/tailwindcss-language-server/src/providers/completionProvider.ts b/packages/tailwindcss-language-server/src/providers/completionProvider.ts
index bb78423a37f7e2c8d48fed37d4f45413bf782113..54f39076f9ee0da598c03d4a503699dcf66520ee 100644
--- a/packages/tailwindcss-language-server/src/providers/completionProvider.ts
+++ b/packages/tailwindcss-language-server/src/providers/completionProvider.ts
@@ -23,7 +23,6 @@ import { isJsContext } from '../util/js'
 import { naturalExpand } from '../util/naturalExpand'
 import semver from 'semver'
 import { docsUrl } from '../util/docsUrl'
-import { ensureArray } from '../util/array'
 
 function completionsFromClassList(
   state: State,
@@ -726,19 +725,10 @@   )
 }
 
 function stringifyDecls(obj: any): string {
-  let props = Object.keys(obj)
-  let nonCustomProps = props.filter((prop) => !prop.startsWith('--'))
-
-  if (props.length !== nonCustomProps.length && nonCustomProps.length !== 0) {
-    props = nonCustomProps
-  }
-
-  return props
-    .map((prop) =>
-      ensureArray(obj[prop])
-        .map((value) => `${prop}: ${value};`)
-        .join(' ')
-    )
+  return Object.keys(obj)
+    .map((prop) => {
+      return `${prop}: ${obj[prop]};`
+    })
     .join(' ')
 }
 
diff --git a/packages/tailwindcss-language-server/src/util/array.ts b/packages/tailwindcss-language-server/src/util/array.ts
deleted file mode 100644
index 13683ccbd6c9bb53185ebb57311e5833d551c5c5..0000000000000000000000000000000000000000
--- a/packages/tailwindcss-language-server/src/util/array.ts
+++ /dev/null
@@ -1,11 +0,0 @@
-export function dedupe<T>(arr: Array<T>): Array<T> {
-  return arr.filter((value, index, self) => self.indexOf(value) === index)
-}
-
-export function ensureArray<T>(value: T | T[]): T[] {
-  return Array.isArray(value) ? value : [value]
-}
-
-export function flatten<T>(arrays: T[][]): T[] {
-  return [].concat.apply([], arrays)
-}
diff --git a/packages/tailwindcss-language-server/src/util/stringify.ts b/packages/tailwindcss-language-server/src/util/stringify.ts
index f2811a6b93276f3bdab86c4f1084af6ce56489a0..5433e90926433db92e6f14389dd4c1d796df38a3 100644
--- a/packages/tailwindcss-language-server/src/util/stringify.ts
+++ b/packages/tailwindcss-language-server/src/util/stringify.ts
@@ -1,7 +1,6 @@
 import removeMeta from './removeMeta'
 const dlv = require('dlv')
 import escapeClassName from 'css.escape'
-import { ensureArray } from './array'
 
 export function stringifyConfigValue(x: any): string {
   if (typeof x === 'string') return x
@@ -36,10 +35,9 @@   }
 
   const indentStr = '\t'.repeat(context.length)
   const decls = props.reduce((acc, curr, i) => {
-    const propStr = ensureArray(obj[curr])
-      .map((val) => `${indentStr + '\t'}${curr}: ${val};`)
-      .join('\n')
-    return `${acc}${i === 0 ? '' : '\n'}${propStr}`
+    return `${acc}${i === 0 ? '' : '\n'}${indentStr + '\t'}${curr}: ${
+      obj[curr]
+    };`
   }, '')
   css += `${indentStr}${augmentClassName(
     className,