Menu

Layout of primary navigation menu, colors…

Layout

Offcanvas is default layout

/config/default/params.yaml

header:
  layout: modal
  modal:
    size: fullscreen # default, or lg, xl
    centered: true # default, or false

Make sure you have not disabled the loading of the corresponding JavaScript component

Bootstrap modal documentation

Offcanvas

/config/default/params.yaml

header:
  layout: offcanvas 
  offcanvas:
    position: end # default, or start, top, bottom

Make sure you have not disabled the loading of the corresponding JavaScript component

Bootstrap offcanvas documentation

/assets/sass/abstracts/_variables-site.sass

$navbar-expand: lg // false to disable

Colors

/assets/sass/abstracts/_variables-site.sass

$menu-background-color: // $header-background-color !default
$menu-color: // $header-color !default

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