diff --git a/controllers/front/CategoryController.php b/controllers/front/CategoryController.php
index 3b8fd070e..78eb76b2d 100644
--- a/controllers/front/CategoryController.php
+++ b/controllers/front/CategoryController.php
@@ -129,7 +129,8 @@ class CategoryControllerCore extends FrontController
 			'homeSize' => Image::getSize(ImageType::getFormatedName('home')),
 			'allow_oosp' => (int)Configuration::get('PS_ORDER_OUT_OF_STOCK'),
 			'comparator_max_item' => (int)Configuration::get('PS_COMPARATOR_MAX_ITEM'),
-			'suppliers' => Supplier::getSuppliers()
+			'suppliers' => Supplier::getSuppliers(),
+			'body_classes' => array($this->php_self.'-'.$this->category->id, $this->php_self.'-'.$this->category->link_rewrite)
 		));
 	}
 
diff --git a/controllers/front/ProductController.php b/controllers/front/ProductController.php
index f934091ae..97c3bd5ac 100644
--- a/controllers/front/ProductController.php
+++ b/controllers/front/ProductController.php
@@ -263,11 +263,16 @@ class ProductControllerCore extends FrontController
 				'currencyBlank' => $this->context->currency->blank,
 				'jqZoomEnabled' => Configuration::get('PS_DISPLAY_JQZOOM'),
 				'ENT_NOQUOTES' => ENT_NOQUOTES,
-				'outOfStockAllowed' => (int)Configuration::get('PS_ORDER_OUT_OF_STOCK')
+				'outOfStockAllowed' => (int)Configuration::get('PS_ORDER_OUT_OF_STOCK'),
+				'errors' => $this->errors,
+				'body_classes' => array(
+					$this->php_self.'-'.$this->product->id, 
+					$this->php_self.'-'.$this->product->link_rewrite,
+					'category-'.$this->category->id,
+					'category-'.$this->category->link_rewrite
+				)
 			));
 		}
-
-		$this->context->smarty->assign('errors', $this->errors);
 		$this->setTemplate(_PS_THEME_DIR_.'product.tpl');
 	}
 
diff --git a/themes/default-bootstrap/header.tpl b/themes/default-bootstrap/header.tpl
index e7a305004..b1c1e8f60 100644
--- a/themes/default-bootstrap/header.tpl
+++ b/themes/default-bootstrap/header.tpl
@@ -94,7 +94,7 @@
 <script src="{$js_dir}jquery/resonsive_utilites.js"></script>
 		{$HOOK_HEADER}
 	</head>
-	<body {if isset($page_name)}id="{$page_name|escape:'html':'UTF-8'}"{/if} class="{if isset($page_name)}{$page_name|escape:'html':'UTF-8'}{/if}{if $hide_left_column} hide-left-column{/if}{if $hide_right_column} hide-right-column{/if}{if $content_only} content_only{/if} lang_{$lang_iso}">
+	<body{if isset($page_name)} id="{$page_name|escape:'html':'UTF-8'}"{/if} class="{if isset($page_name)}{$page_name|escape:'html':'UTF-8'}{/if}{if isset($body_classes) && $body_classes|@count} {implode value=$body_classes separator=' '}{/if}{if $hide_left_column} hide-left-column{/if}{if $hide_right_column} hide-right-column{/if}{if $content_only} content_only{/if} lang_{$lang_iso}">
 	{if !$content_only}
 		{if isset($restricted_country_mode) && $restricted_country_mode}
 		<div id="restricted-country">
@@ -209,8 +209,8 @@
                     {/if}
                     <div class="row">
 						{assign var='left_column' value=0}{assign var='right_column' value=0}
-						{if isset($HOOK_LEFT_COLUMN) && $HOOK_LEFT_COLUMN|trim && !$hide_left_column}{$left_column = 3}{/if}
-						{if isset($HOOK_RIGHT_COLUMN) && $HOOK_RIGHT_COLUMN|trim && !$hide_right_column}{$right_column = 3}{/if}
+						{if isset($HOOK_LEFT_COLUMN) && $HOOK_LEFT_COLUMN|trim && !$hide_left_column}{$left_column=3}{/if}
+						{if isset($HOOK_RIGHT_COLUMN) && $HOOK_RIGHT_COLUMN|trim && !$hide_right_column}{$right_column=3}{/if}
 						{if isset($left_column) && !empty($left_column)}
 						<!-- Left -->
                         <div id="left_column" class="column col-xs-12 col-sm-3">
diff --git a/themes/default/header.tpl b/themes/default/header.tpl
index b5f925139..5cae9545f 100644
--- a/themes/default/header.tpl
+++ b/themes/default/header.tpl
@@ -64,7 +64,7 @@
 {/if}
 		{$HOOK_HEADER}
 	</head>
-	<body {if isset($page_name)}id="{$page_name|escape:'html':'UTF-8'}"{/if} class="{if isset($page_name)}{$page_name|escape:'html':'UTF-8'}{/if}{if $hide_left_column} hide-left-column{/if}{if $hide_right_column} hide-right-column{/if}{if $content_only} content_only{/if}">
+	<body{if isset($page_name)} id="{$page_name|escape:'html':'UTF-8'}"{/if} class="{if isset($page_name)}{$page_name|escape:'html':'UTF-8'}{/if}{if isset($body_classes) && $body_classes|@count} {implode value=$body_classes separator=' '}{/if}{if $hide_left_column} hide-left-column{/if}{if $hide_right_column} hide-right-column{/if}{if $content_only} content_only{/if}">
 	{if !$content_only}
 		{if isset($restricted_country_mode) && $restricted_country_mode}
 		<div id="restricted-country">
@@ -75,15 +75,15 @@
 			<!-- Header -->
 			<div id="header" class="grid_9 alpha omega">
 				<a id="header_logo" href="{$base_dir}" title="{$shop_name|escape:'html':'UTF-8'}">
-					<img class="logo" src="{$logo_url}" alt="{$shop_name|escape:'html':'UTF-8'}" {if $logo_image_width}width="{$logo_image_width}"{/if} {if $logo_image_height}height="{$logo_image_height}" {/if}/>
+					<img class="logo" src="{$logo_url}" alt="{$shop_name|escape:'html':'UTF-8'}"{if $logo_image_width} width="{$logo_image_width}"{/if}{if $logo_image_height} height="{$logo_image_height}"{/if}/>
 				</a>
 				<div id="header_right" class="grid_9 omega">
 					{$HOOK_TOP}
 				</div>
 			</div>
 			{assign var='left_column' value=false}{assign var='right_column' value=false}
-			{if isset($HOOK_LEFT_COLUMN) && $HOOK_LEFT_COLUMN|trim && !$hide_left_column}{$left_column = true}{/if}
-			{if isset($HOOK_RIGHT_COLUMN) && $HOOK_RIGHT_COLUMN|trim && !$hide_right_column}{$right_column = true}{/if}
+			{if isset($HOOK_LEFT_COLUMN) && $HOOK_LEFT_COLUMN|trim && !$hide_left_column}{$left_column=true}{/if}
+			{if isset($HOOK_RIGHT_COLUMN) && $HOOK_RIGHT_COLUMN|trim && !$hide_right_column}{$right_column=true}{/if}
 			<div id="columns" class="grid_9 alpha omega clearfix">
 				{if isset($left_column) && !empty($left_column)}
 				<!-- Left -->
