diff --git a/README.md b/README.md
index c6c88df4df0f9b38d40d1b4a63a3550ba00a47e6..abb2a5fc7e96503e202abd939f762b7340f34688 100644
--- a/README.md
+++ b/README.md
@@ -37,27 +37,37 @@ wget https://raw.githubusercontent.com/AndiDittrich/HttpErrorPages/master/dist/p
 
 [NGINX](http://nginx.org/en/docs/http/ngx_http_core_module.html#error_page) supports custom error-pages using multiple `error_page` directives.
 
-File: `default.conf`
+File: [`default.conf`](https://www.nginx.com/resources/wiki/start/topics/examples/full/)
 
-Example - assumes HttpErrorPages are located into `/var/www/ErrorPages/`.
+Example - assumes HttpErrorPages are located into `/var/ErrorPages/`.
 
 ```nginx
-# add one directive for each http status code
-error_page 400 /ErrorPages/HTTP400.html;
-error_page 401 /ErrorPages/HTTP401.html;
-error_page 402 /ErrorPages/HTTP402.html;
-error_page 403 /ErrorPages/HTTP403.html;
-error_page 404 /ErrorPages/HTTP404.html;
-error_page 500 /ErrorPages/HTTP500.html;
-error_page 501 /ErrorPages/HTTP501.html;
-error_page 502 /ErrorPages/HTTP502.html;
-error_page 503 /ErrorPages/HTTP503.html;
-
-# redirect the virtual ErrorPages path the real path
-location /ErrorPages/ {
-    alias /var/www/ErrorPages/;
-    internal;
-}
+server {
+    listen      80;
+    server_name localhost;
+    root        /var/www;
+    index       index.html;
+    
+    location / {
+        try_files $uri $uri/ =404;
+        
+        # add one directive for each http status code
+        error_page 400 /ErrorPages/HTTP400.html;
+        error_page 401 /ErrorPages/HTTP401.html;
+        error_page 402 /ErrorPages/HTTP402.html;
+        error_page 403 /ErrorPages/HTTP403.html;
+        error_page 404 /ErrorPages/HTTP404.html;
+        error_page 500 /ErrorPages/HTTP500.html;
+        error_page 501 /ErrorPages/HTTP501.html;
+        error_page 502 /ErrorPages/HTTP502.html;
+        error_page 503 /ErrorPages/HTTP503.html;
+    }
+
+    # redirect the virtual ErrorPages path the real path
+    location /ErrorPages/ {
+        alias /var/ErrorPages/;
+        internal;
+    }
 ```
 
 ## expressjs Integration ##
@@ -147,22 +157,33 @@ Custom Error-Codes used by e.g. CloudFlare
 ```
 
 ### Build/Generator ###
+* Install packages using npm or yarn and have php in your executable path* 
 Used Naming-Scheme: `HTTP#CODE#.html` (customizable by editing the `config.ini`)
 To generate the static html pages, run the `generator.php` script:
 
 ```shell
-php generator.php
+npm run generate-php
 ```
 
 All generated html files are located into the `dist/` directory by default.
 
 ### Compile LESS Files ###
-To rebuild the LESS files run the **ANT** build script (requires lessc in your path):
+To rebuild the LESS files run the :
 
 ```shell
-ant css
+npm run generate-css
 ```
 
+### Build all ###
+
+```shell
+npm run generate
+```
+
+
+### Less CSS ### 
+
+Modify the `assets/Layout.less` to make your own design styles (Make sure to run build scripts after editing the files)
 
 ### Configuration ###
 
@@ -186,4 +207,4 @@ footer = "Technical Contact: <a href="mailto:x@example.com">x@example.com</a>"
 ```
 
 ## License ##
-HttpErrorsPages is OpenSource and licensed under the Terms of [The MIT License (X11)](http://opensource.org/licenses/MIT) - your're welcome to contribute
\ No newline at end of file
+HttpErrorsPages is OpenSource and licensed under the Terms of [The MIT License (X11)](http://opensource.org/licenses/MIT) - your're welcome to contribute
diff --git a/generator.php b/generator.php
index 05ced2d247df570f9d65de086bbf60af9c53ab01..2b913d10d294e8da2e8ce556342b954c10bdaa01 100644
--- a/generator.php
+++ b/generator.php
@@ -21,8 +21,25 @@ if (isset($argv[1])){
 // load config
 $config = parse_ini_file($configFilename, false);
 
-// load pages
-$pages = require('pages.php');
+//default language
+$language = 'en_US'; 
+
+if (isset($argv[2])) {
+    $language = $argv[2];
+}
+
+//Internationalization
+switch($language) {
+    case 'pt_BR':
+        $pages = require('pages-pt_BR.php');
+        break;
+    case 'en_US':
+        $pages = require('pages-en_US.php');
+        break;
+    default:
+        $pages = require('pages-en_US.php');
+        break;      
+}
 
 // store pages as json data
 file_put_contents('dist/pages.json', json_encode($pages));
diff --git a/package.json b/package.json
index 57c3f06af3ce69565ac84965b96919fa575be75f..d83cf68ebceb3c0b6950efba1644c4e44167e69d 100644
--- a/package.json
+++ b/package.json
@@ -2,6 +2,11 @@
   "name": "http-error-pages",
   "version": "0.5.2",
   "description": "Simple HTTP Error Pages for expressjs",
+  "scripts":{
+    "generate-css":"lessc assets/Layout.less assets/Layout.css",
+    "generate-html":"php generator.php",
+    "generate": "npm run generate-css && npm run generate-html"
+  },
   "keywords": [
     "http",
     "https",
@@ -29,5 +34,8 @@
   "license": "MIT",
   "devDependencies": {
     "express": "^4.15.2"
+  },
+  "dependencies": {
+    "less": "^2.7.3"
   }
 }
diff --git a/pages.php b/pages-en_US.php
similarity index 100%
rename from pages.php
rename to pages-en_US.php
diff --git a/pages-pt_BR.php b/pages-pt_BR.php
new file mode 100644
index 0000000000000000000000000000000000000000..247ad52f2e3e4f84f4c752dac0f8a391f4bec248
--- /dev/null
+++ b/pages-pt_BR.php
@@ -0,0 +1,68 @@
+<?php
+return array (
+        
+        // STANDARD ERROR CODES
+        // =======================================================
+        '400' => array (
+                'title' => 'Requisição inválida',
+	        'message' => 'Oops! Não conseguimos processar a requisição.'	
+        ),
+        '401' => array (
+                'title' => 'Não Autorizado',
+                'message' => 'Oops! O recurso requer uma autenticação.'
+        ),
+        '403' => array (
+                'title' => 'Acesso Negado',
+                'message' => 'Oops! O recurso requer uma autenticação.' 
+        ),
+        
+        // http 404 not found
+        '404' => array (
+                'title' => 'Página Não Encontrada',
+	        'message'=>'Oops! Não conseguimos encontrar a página que você estava procurando.'	
+        ),
+        
+        // internal server error
+        '500' => array (
+                'title' => 'Webservice Atualmente Não Disponível',
+                'message' => "Uma condição inesperada foi encontrada.\nNosso time de serviços está trabalhando para deixar isso online novamente." 
+        ),
+        
+        // unknown http method
+        '501' => array (
+                'title' => 'Não implementado',
+		'message' => 'Oops! O Webserver não conseguiu reconhecer o método solicitado'
+        ),
+        
+        // http proxy forward error
+        '502' => array (
+		'title' => 'Webservice atualmente indisponível',
+		'message' => "Nós tivemos alguns problema com o nosso backend. Nosso time de serviços está trabalhando para deixar isso online novamente."
+        ),
+        
+        // webserver service error
+        '503' => array (
+                'title' => 'Webservice atualmente indisponível',
+                'message' => "Nós tivemos alguns problema com o nosso backend. Nosso time de serviços está trabalhando para deixar isso online novamente."
+        ),
+        
+        // CUSTOM ERROR CODES
+        // =======================================================
+        // webserver origin error
+        '520' => array(
+            'title' => 'Origin Error - Host Desconhecido',
+            'message' => 'O hostname requisitado não é roteado. Use apenas hostnames para acessar recursos.'
+        ),
+        
+        // webserver down error
+        '521' => array (
+                'title' => 'Webservice atualmente indisponível',
+                'message' => "Nós tivemos alguns problema com o nosso backend. Nosso time de serviços está trabalhando para deixar isso online novamente."
+        ),
+        
+        // maintenance
+        '533' => array(
+                'title' => 'Estamos em manutenção',
+                'message' => "O site está offline para manutenção.\nNosso time está trabalhando para reestabelecer o serviço em breve."                
+        )
+);