diff --git a/.changeset/fifty-seals-join.md b/.changeset/fifty-seals-join.md
new file mode 100644
index 0000000..1a2aec3
--- /dev/null
+++ b/.changeset/fifty-seals-join.md
@@ -0,0 +1,5 @@
+---
+"@robino/prettier": patch
+---
+
+Adds `prettier-plugin-css-order`
diff --git a/package-lock.json b/package-lock.json
index ea16da2..2160c0a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1800,6 +1800,18 @@
 				"which": "^1.2.9"
 			}
 		},
+		"node_modules/css-declaration-sorter": {
+			"version": "7.2.0",
+			"resolved": "https://registry.npmjs.org/css-declaration-sorter/-/css-declaration-sorter-7.2.0.tgz",
+			"integrity": "sha512-h70rUM+3PNFuaBDTLe8wF/cdWu+dOZmb7pJt8Z2sedYbAcQVQV/tEchueg3GWxwqS0cxtbxmaHEdkNACqcvsow==",
+			"license": "ISC",
+			"engines": {
+				"node": "^14 || ^16 || >=18"
+			},
+			"peerDependencies": {
+				"postcss": "^8.0.9"
+			}
+		},
 		"node_modules/debug": {
 			"version": "4.3.6",
 			"resolved": "https://registry.npmjs.org/debug/-/debug-4.3.6.tgz",
@@ -2597,7 +2609,6 @@
 			"version": "3.3.7",
 			"resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.7.tgz",
 			"integrity": "sha512-eSRppjcPIatRIMC1U6UngP8XFcz8MQWGQdt1MTBQ7NaAmvXDfvNxbvWV3x2y6CdEUciCSsDHDQZbhYaB8QEo2g==",
-			"dev": true,
 			"funding": [
 				{
 					"type": "github",
@@ -2819,7 +2830,6 @@
 			"version": "8.4.41",
 			"resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.41.tgz",
 			"integrity": "sha512-TesUflQ0WKZqAvg52PWL6kHgLKP6xB6heTOdoYM0Wt2UHyxNa4K25EZZMgKns3BH1RLVbZCREPpLY0rhnNoHVQ==",
-			"dev": true,
 			"funding": [
 				{
 					"type": "opencollective",
@@ -2844,6 +2854,44 @@
 				"node": "^10 || ^12 || >=14"
 			}
 		},
+		"node_modules/postcss-less": {
+			"version": "6.0.0",
+			"resolved": "https://registry.npmjs.org/postcss-less/-/postcss-less-6.0.0.tgz",
+			"integrity": "sha512-FPX16mQLyEjLzEuuJtxA8X3ejDLNGGEG503d2YGZR5Ask1SpDN8KmZUMpzCvyalWRywAn1n1VOA5dcqfCLo5rg==",
+			"license": "MIT",
+			"engines": {
+				"node": ">=12"
+			},
+			"peerDependencies": {
+				"postcss": "^8.3.5"
+			}
+		},
+		"node_modules/postcss-scss": {
+			"version": "4.0.9",
+			"resolved": "https://registry.npmjs.org/postcss-scss/-/postcss-scss-4.0.9.tgz",
+			"integrity": "sha512-AjKOeiwAitL/MXxQW2DliT28EKukvvbEWx3LBmJIRN8KfBGZbRTxNYW0kSqi1COiTZ57nZ9NW06S6ux//N1c9A==",
+			"funding": [
+				{
+					"type": "opencollective",
+					"url": "https://opencollective.com/postcss/"
+				},
+				{
+					"type": "tidelift",
+					"url": "https://tidelift.com/funding/github/npm/postcss-scss"
+				},
+				{
+					"type": "github",
+					"url": "https://github.com/sponsors/ai"
+				}
+			],
+			"license": "MIT",
+			"engines": {
+				"node": ">=12.0"
+			},
+			"peerDependencies": {
+				"postcss": "^8.4.29"
+			}
+		},
 		"node_modules/preferred-pm": {
 			"version": "3.1.4",
 			"resolved": "https://registry.npmjs.org/preferred-pm/-/preferred-pm-3.1.4.tgz",
@@ -2940,6 +2988,23 @@
 				"url": "https://github.com/prettier/prettier?sponsor=1"
 			}
 		},
+		"node_modules/prettier-plugin-css-order": {
+			"version": "2.1.2",
+			"resolved": "https://registry.npmjs.org/prettier-plugin-css-order/-/prettier-plugin-css-order-2.1.2.tgz",
+			"integrity": "sha512-vomxPjHI6pOMYcBuouSJHxxQClJXaUpU9rsV9IAO2wrSTZILRRlrxAAR8t9UF6wtczLkLfNRFUwM+ZbGXOONUA==",
+			"license": "ISC",
+			"dependencies": {
+				"css-declaration-sorter": "^7.1.1",
+				"postcss-less": "^6.0.0",
+				"postcss-scss": "^4.0.9"
+			},
+			"engines": {
+				"node": ">=16"
+			},
+			"peerDependencies": {
+				"prettier": "3.x"
+			}
+		},
 		"node_modules/pseudomap": {
 			"version": "1.0.2",
 			"resolved": "https://registry.npmjs.org/pseudomap/-/pseudomap-1.0.2.tgz",
@@ -3175,7 +3240,6 @@
 			"version": "1.2.0",
 			"resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.2.0.tgz",
 			"integrity": "sha512-itJW8lvSA0TXEphiRoawsCksnlf8SyvmFzIhltqAHluXd88pkCd+cXJVHTDwdCr0IzwptSm035IHQktUu1QUMg==",
-			"dev": true,
 			"license": "BSD-3-Clause",
 			"engines": {
 				"node": ">=0.10.0"
@@ -3747,7 +3811,8 @@
 			"version": "0.1.0",
 			"license": "MIT",
 			"dependencies": {
-				"@trivago/prettier-plugin-sort-imports": "^4.3.0"
+				"@trivago/prettier-plugin-sort-imports": "^4.3.0",
+				"prettier-plugin-css-order": "^2.1.2"
 			},
 			"devDependencies": {
 				"@robino/tsconfig": "*"
@@ -3762,7 +3827,7 @@
 		},
 		"packages/tsconfig": {
 			"name": "@robino/tsconfig",
-			"version": "0.1.1",
+			"version": "0.2.1",
 			"license": "MIT",
 			"dependencies": {
 				"@types/node": "^22.5.0"
diff --git a/packages/prettier/package.json b/packages/prettier/package.json
index c8c00f6..2a14e6b 100644
--- a/packages/prettier/package.json
+++ b/packages/prettier/package.json
@@ -19,7 +19,8 @@
 		"prettier": "^3.3.3"
 	},
 	"dependencies": {
-		"@trivago/prettier-plugin-sort-imports": "^4.3.0"
+		"@trivago/prettier-plugin-sort-imports": "^4.3.0",
+		"prettier-plugin-css-order": "^2.1.2"
 	},
 	"devDependencies": {
 		"@robino/tsconfig": "*"
diff --git a/packages/prettier/src/index.js b/packages/prettier/src/index.js
index 8d5c20a..855443a 100644
--- a/packages/prettier/src/index.js
+++ b/packages/prettier/src/index.js
@@ -2,5 +2,8 @@
 export default {
 	useTabs: true,
 	htmlWhitespaceSensitivity: "ignore",
-	plugins: ["@trivago/prettier-plugin-sort-imports"],
+	plugins: [
+		"@trivago/prettier-plugin-sort-imports",
+		"prettier-plugin-css-order",
+	],
 };