I have single product page on my site. The product is having category "beauty".

Product display page having following body tag:

<body data-container="body" class="catalog-product-view product-extra-firming-night">

body tag have classes -: catalog-product-view product-extra-firming-night

Now what I want? I want to add/insert additional class in body tag. (see body tag below).

<body data-container="body" class="catalog-product-view product-extra-firming-night current-category-beauty">

My workaround is as follows:

I have checked the code in following file. Check the if condition.


Also tried to add custom code above if condition.

$pageConfig->addBodyClass('product-' . $product->getCategory());

Can anybody help on this issue. how to add category name as a class in body tag??

2 Answers 2


you can follow these steps :

1.Create your own module ( example :Vendor/Mysample)


<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../../../lib/internal/Magento/Framework/Module/etc/module.xsd">
<module name="Vendor_Mysample" setup_version="1.0.0" />

3.Create file under app/code/Vendor/Mysample/etc/frontend/di.xml and copy this code :

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../../../../lib/internal/Magento/Framework/ObjectManager/etc/config.xsd">

<type name="Magento\Framework\View\Result\Page">
<plugin name="mySampleResultPage" type="Vendor\Mysample\Plugin\Result\Page"/>


4.Create the registration file app/code/Vendor/Mysample/registration.php


5.Create the file app/code/Vendor/Mysample/Plugin/Result/Page.php and copy the below code :

namespace Vendor\Mysample\Plugin\Result;

use Magento\Framework\App\ResponseInterface;

class Page
  private $context;
  private $registry;

  public function __construct(
  \Magento\Framework\View\Element\Context $context,
  \Magento\Framework\Registry $registry
  ) {
     $this->context = $context;
     $this->registry = $registry;

  public function beforeRenderResult(
  \Magento\Framework\View\Result\Page $subject,
  ResponseInterface $response

  $category = $this->registry->registry('current_category');

  if($this->context->getRequest()->getFullActionName() == 'catalog_product_view'){

  return [$response];
  1. run php bin/magento setup:upgrade

Good luck and happy coding !!!

  • Sami, I will try this solution and will let u know.....
    – 1990rk4
    Aug 15, 2018 at 13:27
  • @rk1990 , i tested it and it works ;) . Instead of Vendor/Mysample , you can choose the naming like you want
    – sami23
    Aug 15, 2018 at 13:35
  • ok ... i will try this ...
    – 1990rk4
    Aug 15, 2018 at 13:37
  • 1
    Hi sami, thanks, this working for me ... But, the only issue is when i click on product under root category then it gives error "unable to handle request" .. For e,g I have root category "Beauty". When i click on product listed under "Beauty" it gives me error. but when I click on product under "Beauty -> Skincare" it works for me... any suggetion??
    – 1990rk4
    Aug 16, 2018 at 6:51
  • @rk1990 can you give more details eg pic to can reproduce the error
    – sami23
    Aug 16, 2018 at 8:40

We can use event layout_load_before to add css class based on current category.


<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    <event name="layout_load_before">
        <observer name="Innoppl_Test" instance="Vendor\Module\Observer\Bodycss" shared="false" />



namespace Vendor\Module\Observer;

use Magento\Framework\Event\ObserverInterface;
use Magento\Framework\Event\Observer;
use Magento\Framework\View\Page\Config;
use Magento\Store\Model\StoreManagerInterface;

class Bodycss implements ObserverInterface
    protected $config;
    protected $storeManager;
    protected $request;
    protected $categoryRepository;

    public function __construct(
        Config $config,
        StoreManagerInterface $storeManager,
        \Magento\Framework\App\Request\Http $request,
        \Magento\Catalog\Api\CategoryRepositoryInterface $categoryRepository
        $this->config = $config;
        $this->storeManager = $storeManager;
        $this->request = $request;
        $this->categoryRepository = $categoryRepository;

    public function execute(Observer $observer){
        $controller = $this->request->getControllerName();
        $action     = $this->request->getActionName();
        $route      = $this->request->getRouteName();
//      check - is this category page
        if($route == "catalog" && $controller == "category" && $action == "view")
            $category = $this->categoryRepository->get($this->request->getParam("id"));



I have tested, it works Easy for your reference

  • Bilal, app/code/Vendor/Module/etc/frontend/events.xml.. means you are saying to create custom extension? or should I change code in file, app/code/Magento/Catalog/etc/frontend/events.xml and create new php file under app/code/Magento/Catalog/observer... please guide....
    – 1990rk4
    Aug 15, 2018 at 13:26
  • I am new to magento... so i am little bit confused with file name you mentioned above... it your answer demands to create new extension or should i change code in existing file... Bodycss.php is custom file???? please guide...
    – 1990rk4
    Aug 15, 2018 at 13:30
  • Thanks, Bilal, this is works for me ... but only on category page.. I want to display category name also on single product page... Can you please help?
    – 1990rk4
    Aug 16, 2018 at 6:53

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