Extension manager>Installation:

  • Install plugin
  • Enable plugin
  • The system plugin qldropdown adds javascript to your website.

Extensions>Modules>your menu

  • Generate new Joomla! standard module menu (or use already existing one)
  • Basic params
    • Set the menu settings to "display subitems".
  • Advanced paranms
    • Menu class suffix: " qldropdown" for turning the menu into a dropdown; mark the _blank in front of dropdown!
    • Further Menu class suffix: " horizontal" OR " vertical" for horizontal / vertical positioning