diff --git a/extensions/css/server/src/cssServerMain.ts b/extensions/css/server/src/cssServerMain.ts
index 751be2baefd6f050f879ff9bed0a31c9d9021240..32a6523a7512e56944da453beeeefd640706a5e1 100644
--- a/extensions/css/server/src/cssServerMain.ts
+++ b/extensions/css/server/src/cssServerMain.ts
@@ -9,8 +9,8 @@ import {
 	TextDocuments, TextDocument, InitializeParams, InitializeResult, RequestType
 } from 'vscode-languageserver';
 
-import {getCSSLanguageService, getSCSSLanguageService, getLESSLanguageService, LanguageSettings, LanguageService, Stylesheet} from 'vscode-css-languageservice';
-import {getLanguageModelCache} from './languageModelCache';
+import { getCSSLanguageService, getSCSSLanguageService, getLESSLanguageService, LanguageSettings, LanguageService, Stylesheet } from 'vscode-css-languageservice';
+import { getLanguageModelCache } from './languageModelCache';
 
 namespace ColorSymbolRequest {
 	export const type: RequestType<string, Range[], any> = { get method() { return 'css/colorSymbols'; } };
@@ -62,7 +62,7 @@ connection.onInitialize((params: InitializeParams): InitializeResult => {
 	};
 });
 
-let languageServices : { [id:string]: LanguageService} = {
+let languageServices: { [id: string]: LanguageService } = {
 	css: getCSSLanguageService(),
 	scss: getSCSSLanguageService(),
 	less: getLESSLanguageService()
@@ -90,7 +90,7 @@ function updateConfiguration(settings: Settings) {
 	documents.all().forEach(triggerValidation);
 }
 
-let pendingValidationRequests : { [uri:string]: NodeJS.Timer } = {};
+let pendingValidationRequests: { [uri: string]: NodeJS.Timer } = {};
 const validationDelayMs = 200;
 
 // The content of a text document has changed. This event is emitted
diff --git a/extensions/css/server/src/languageModelCache.ts b/extensions/css/server/src/languageModelCache.ts
index dce68bed9a32ceea46007705c32435c5080318fd..b12f77b52a61dc178d7213598c613d42af39d4bf 100644
--- a/extensions/css/server/src/languageModelCache.ts
+++ b/extensions/css/server/src/languageModelCache.ts
@@ -4,7 +4,7 @@
  *--------------------------------------------------------------------------------------------*/
 'use strict';
 
-import {TextDocument} from 'vscode-languageserver';
+import { TextDocument } from 'vscode-languageserver';
 
 export interface LanguageModelCache<T> {
 	get(document: TextDocument): T;
@@ -12,8 +12,8 @@ export interface LanguageModelCache<T> {
 	dispose(): void;
 }
 
-export function getLanguageModelCache<T>(maxEntries: number, cleanupIntervalTimeInSec: number, parse: (document: TextDocument) => T) : LanguageModelCache<T> {
-	let languageModels: { [uri:string]: {version:number, languageId: string, cTime: number, languageModel: T}} = {};
+export function getLanguageModelCache<T>(maxEntries: number, cleanupIntervalTimeInSec: number, parse: (document: TextDocument) => T): LanguageModelCache<T> {
+	let languageModels: { [uri: string]: { version: number, languageId: string, cTime: number, languageModel: T } } = {};
 	let nModels = 0;
 
 	let cleanupInterval = void 0;
@@ -32,7 +32,7 @@ export function getLanguageModelCache<T>(maxEntries: number, cleanupIntervalTime
 	}
 
 	return {
-		get(document: TextDocument) : T {
+		get(document: TextDocument): T {
 			let version = document.version;
 			let languageId = document.languageId;
 			let languageModelInfo = languageModels[document.uri];
@@ -41,7 +41,7 @@ export function getLanguageModelCache<T>(maxEntries: number, cleanupIntervalTime
 				return languageModelInfo.languageModel;
 			}
 			let languageModel = parse(document);
-			languageModels[document.uri] = { languageModel, version, languageId, cTime: Date.now()};
+			languageModels[document.uri] = { languageModel, version, languageId, cTime: Date.now() };
 			if (!languageModelInfo) {
 				nModels++;
 			}
diff --git a/extensions/css/server/src/typings/promise.d.ts b/extensions/css/server/src/typings/promise.d.ts
index 31b97cb9580a394a199dd37c6f71f70dc1fc28d2..925c943df50a6affcb77508b419246dcc91cd7cf 100644
--- a/extensions/css/server/src/typings/promise.d.ts
+++ b/extensions/css/server/src/typings/promise.d.ts
@@ -31,8 +31,8 @@ interface Thenable<R> {
     * @param onrejected The callback to execute when the Promise is rejected.
     * @returns A Promise for the completion of which ever callback is executed.
     */
-    then<TResult>(onfulfilled?: (value: R) => TResult | Thenable<TResult>, onrejected?: (reason: any) => TResult | Thenable<TResult>): Thenable<TResult>;
-    then<TResult>(onfulfilled?: (value: R) => TResult | Thenable<TResult>, onrejected?: (reason: any) => void): Thenable<TResult>;
+	then<TResult>(onfulfilled?: (value: R) => TResult | Thenable<TResult>, onrejected?: (reason: any) => TResult | Thenable<TResult>): Thenable<TResult>;
+	then<TResult>(onfulfilled?: (value: R) => TResult | Thenable<TResult>, onrejected?: (reason: any) => void): Thenable<TResult>;
 }
 
 /**
@@ -45,15 +45,15 @@ interface Promise<T> extends Thenable<T> {
     * @param onrejected The callback to execute when the Promise is rejected.
     * @returns A Promise for the completion of which ever callback is executed.
     */
-    then<TResult>(onfulfilled?: (value: T) => TResult | Thenable<TResult>, onrejected?: (reason: any) => TResult | Thenable<TResult>): Promise<TResult>;
-    then<TResult>(onfulfilled?: (value: T) => TResult | Thenable<TResult>, onrejected?: (reason: any) => void): Promise<TResult>;
+	then<TResult>(onfulfilled?: (value: T) => TResult | Thenable<TResult>, onrejected?: (reason: any) => TResult | Thenable<TResult>): Promise<TResult>;
+	then<TResult>(onfulfilled?: (value: T) => TResult | Thenable<TResult>, onrejected?: (reason: any) => void): Promise<TResult>;
 
     /**
      * Attaches a callback for only the rejection of the Promise.
      * @param onrejected The callback to execute when the Promise is rejected.
      * @returns A Promise for the completion of the callback.
      */
-    catch(onrejected?: (reason: any) => T | Thenable<T>): Promise<T>;
+	catch(onrejected?: (reason: any) => T | Thenable<T>): Promise<T>;
 }
 
 interface PromiseConstructor {
@@ -63,7 +63,7 @@ interface PromiseConstructor {
      * a resolve callback used resolve the promise with a value or the result of another promise,
      * and a reject callback used to reject the promise with a provided reason or error.
      */
-    new <T>(executor: (resolve: (value?: T | Thenable<T>) => void, reject: (reason?: any) => void) => void): Promise<T>;
+	new <T>(executor: (resolve: (value?: T | Thenable<T>) => void, reject: (reason?: any) => void) => void): Promise<T>;
 
     /**
      * Creates a Promise that is resolved with an array of results when all of the provided Promises
@@ -71,7 +71,7 @@ interface PromiseConstructor {
      * @param values An array of Promises.
      * @returns A new Promise.
      */
-    all<T>(values: Array<T | Thenable<T>>): Promise<T[]>;
+	all<T>(values: Array<T | Thenable<T>>): Promise<T[]>;
 
     /**
      * Creates a Promise that is resolved or rejected when any of the provided Promises are resolved
@@ -79,34 +79,34 @@ interface PromiseConstructor {
      * @param values An array of Promises.
      * @returns A new Promise.
      */
-    race<T>(values: Array<T | Thenable<T>>): Promise<T>;
+	race<T>(values: Array<T | Thenable<T>>): Promise<T>;
 
     /**
      * Creates a new rejected promise for the provided reason.
      * @param reason The reason the promise was rejected.
      * @returns A new rejected Promise.
      */
-    reject(reason: any): Promise<void>;
+	reject(reason: any): Promise<void>;
 
     /**
      * Creates a new rejected promise for the provided reason.
      * @param reason The reason the promise was rejected.
      * @returns A new rejected Promise.
      */
-    reject<T>(reason: any): Promise<T>;
+	reject<T>(reason: any): Promise<T>;
 
     /**
       * Creates a new resolved promise for the provided value.
       * @param value A promise.
       * @returns A promise whose internal state matches the provided promise.
       */
-    resolve<T>(value: T | Thenable<T>): Promise<T>;
+	resolve<T>(value: T | Thenable<T>): Promise<T>;
 
     /**
      * Creates a new resolved promise .
      * @returns A resolved promise.
      */
-    resolve(): Promise<void>;
+	resolve(): Promise<void>;
 }
 
 declare var Promise: PromiseConstructor;