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I'm trying to figure out how to create a mega menu with custom css only / no extensions ?

I copied over the Magento/Catalog/Plugin/Block/Topmenu block to begin. But not sure what to do next or where to find the HTML.

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IN magento2, menu's html is generate from Magento\Theme\Block\Html;e

At this class's

  • _getHtml(). first level menu items
  • _addSubMenu() add sub menu HTML code for current menu item.ne

Basic this block class generate Html content for menu

Add the menu.js (vendor/magento/module-theme/view/frontend/web/) used at Menu

For *css use less file _navigation.less at **vendor\magento\theme-frontend-blank\web\css\source**.

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  • Thanks Amit, when I copy over Magento\Theme\Block\Html\Topmenu and run my page I get this error: [message] => Uncaught TypeError: Argument 2 passed to Magento\Theme\Block\Html\Topmenu::__construct() must be an instance of Magento\Framework\Data\Tree\NodeFactory, array given, called in /var/www/business/app/code/Comapny/Topmenu/Block/Html/Topmenu.php on line 52 and defined in /var/www/business/vendor/magento/module-theme/Block/Html/Topmenu.php:46
    – Kara
    Commented Sep 29, 2017 at 20:56
  • Please share code of /var/www/business/app/code/Comapny/Topmenu/Block/Html/Topmen‌​u.php.
    – Amit Bera
    Commented Oct 1, 2017 at 4:26

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