Kdjykuj

Below xml adds custom navigation before category. To make it responsive I have included it under block navigation.sections.

<referenceBlock name="navigation.sections">

             <arguments>

                    <argument name="group_name" xsi:type="string">navigation-sections</argument>

                    <argument name="group_css" xsi:type="string">nav-sections</argument>

                </arguments>

            <block class="MagentoFrameworkViewElementTemplate" name="sub.nav" group="navigation-sections" template="Magento_Theme::html/header_links.phtml">

                <arguments>

                    <argument name="title" translate="true" xsi:type="string">Sub Nav</argument>

                </arguments>

            </block>

        </referenceBlock>

But now it break my HTML structure as I want this custom block to be inside header.wrapper and at the same time responsive. I tried below but its not working

<move element="sub.nav" destination="header-wrapper" after="logo"/>

Although navigation.sections can be moved into header and its responsive too.

<move element="navigation.sections" destination="header-wrapper" after="logo"/>

If I change referenceBlock to header.wrapper, the navigation goes inside header but then it is not working for responsive mode. How do I move my custom navigation inside header.wrapper and make it responsive also ?

What I did as a workaround is to duplicate the topmenu layout, leaving the original for mobile and the new one for desktop. Then with CSS you can show/hide the desired menu. Something like this:

default.xml

<referenceContainer name="header-wrapper">

  <container name="topmenu.desktop"

    as="topmenu.desktop"

    label="Top Menu - Desktop"

    htmlTag="div"

    htmlClass="topmenu-desktop"

    after="logo">

    <block class="MagentoThemeBlockHtmlTopmenu"

      name="catalog.topnav.desktop"

      template="Magento_Theme::html/topmenu.phtml"

      ttl="3600"/>

  </container>

</referenceContainer>

CSS

/* Hide the original Navigation menu on Desktop */

.nav-sections {

  @media (min-width: @min_tablet) { display: none; }

}



/* Hide the duplicated Navigation menu on Mobile */

.page-header {

  .header.content {

    .topmenu-desktop {

      @media (max-width: @max_tablet) { display: none; }

    }

  }

}

Note: I added the custom links to the Top Menu as explained here, so the links inherit the navigation classes

Hope it helps.