How / where to add custom css?
Please add your custom css code into the next field of the Mega Main Menu:
WordPress Admin > Mega Main Menu > Specific Options > Custom CSS
By using this method you can be sure to not lose any custom code on theme/plugins update.
Note: Our theme support a child themes and we have an empty child theme included in the full theme package ( see Premium Design Assets > seo-child.zip ). Child themes are better for complex customizations or when you need to change php code as well.