.md-area .md-header.clearfix %ul.center-top-menu %li.active = link_to '#md-write-holder', class: 'js-md-write-button', tabindex: '-1' do Write %li = link_to '#md-preview-holder', class: 'js-md-preview-button', tabindex: '-1' do Preview - if defined?(referenced_users) && referenced_users %span.referenced-users.pull-left.hide = icon('exclamation-triangle') You are about to add %strong %span.js-referenced-users-count 0 people to the discussion. Proceed with caution. %div .md-write-holder = yield .md.md-preview-holder.hide .js-md-preview{class: (preview_class if defined?(preview_class))}