%nav{ class: 'navbar navbar-default' }
  %div{ class: 'container-fluid' }
    %div{ class: 'navbar-header' }
      %button{ type: 'button', class: 'navbar-toggle collapsed', data_toggle: 'collapse', data_target: '#navbar', aria_expanded: 'false', aria_controls: 'navbar' }
        %span{ class: 'sr-only' } Toggle navigation
        %span{ class: 'icon-bar' }
        %span{ class: 'icon-bar' }
        %span{ class: 'icon-bar' }
      %a{ class: 'navbar-brand', href: '#' }= "#{GhPreview::Config::NAME}"