diff --git a/Decorator/Decorator.php b/Decorator/Decorator.php
index 3231f09..d7ab5dd 100644
--- a/Decorator/Decorator.php
+++ b/Decorator/Decorator.php
@@ -14,17 +14,17 @@ namespace DesignPatterns\Decorator;
  *   course)
  *
  */
- 
 
-/** 
+/**
  * the Deoorator MUST implement the Renderer contract, this is the key-feature
  * of this design pattern. If not, this is no longer a Decorator but just a dumb
  * wrapper.
  */
 abstract class Decorator implements Renderer
 {
+
     protected $_wrapped;
-    
+
     /**
      * You must type-hint the wrapped component :
      * It ensures you can call renderData() in the subclasses !
@@ -35,5 +35,5 @@ abstract class Decorator implements Renderer
     {
         $this->_wrapped = $wrappable;
     }
-}
 
+}
diff --git a/Decorator/RenderInJson.php b/Decorator/RenderInJson.php
index 57f8b06..0c521bd 100644
--- a/Decorator/RenderInJson.php
+++ b/Decorator/RenderInJson.php
@@ -4,9 +4,11 @@ namespace DesignPatterns\Decorator;
 
 class RenderInJson extends Decorator
 {
+
     public function renderData()
     {
         $output = $this->_wrapped->renderData();
         return json_encode($output);
     }
+
 }
diff --git a/Decorator/RenderInXml.php b/Decorator/RenderInXml.php
index 6e594f9..599c2f5 100644
--- a/Decorator/RenderInXml.php
+++ b/Decorator/RenderInXml.php
@@ -4,6 +4,7 @@ namespace DesignPatterns\Decorator;
 
 class RenderInXml extends Decorator
 {
+
     public function renderData()
     {
         $output = $this->_wrapped->renderData();
@@ -12,7 +13,8 @@ class RenderInXml extends Decorator
         foreach ($output as $key => $val) {
             $doc->appendChild($doc->createElement('foo', 'bar'));
         }
-        
+
         return $doc->saveXML();
     }
+
 }
diff --git a/Decorator/Renderer.php b/Decorator/Renderer.php
index 6a01d4e..af3c46b 100644
--- a/Decorator/Renderer.php
+++ b/Decorator/Renderer.php
@@ -1,8 +1,9 @@
 <?php
 
 namespace DesignPatterns\Decorator;
- 
+
 interface Renderer
 {
+
     public function renderData();
 }
diff --git a/Decorator/Webservice.php b/Decorator/Webservice.php
index c28bbb1..1075341 100644
--- a/Decorator/Webservice.php
+++ b/Decorator/Webservice.php
@@ -4,6 +4,7 @@ namespace DesignPatterns\Decorator;
 
 class Webservice implements Renderer
 {
+
     protected $_data;
 
     public function __construct($data)
@@ -15,4 +16,5 @@ class Webservice implements Renderer
     {
         return $this->_data;
     }
+
 }