app/views/layouts/rails_admin/application.html.erb
<!DOCTYPE html>
<html lang="<%= I18n.locale %>">
<head>
<%= render "layouts/rails_admin/head" %>
</head>
<body class="rails_admin">
<div data-i18n-options="<%= I18n.t("admin.js").to_json %>" id="admin-js"></div>
<div class="badge bg-warning" id="loading" style="display:none; position:fixed; right:20px; bottom:20px; z-index:100000">
<%= t('admin.loading') %>
</div>
<nav class="navbar navbar-expand-md fixed-top <%= RailsAdmin::Config.navbar_css_classes.join(' ') %>">
<%= render "layouts/rails_admin/navigation" %>
</nav>
<div class="container-fluid">
<div class="row">
<div class="col-sm-3 col-md-2 flex-wrap p-0">
<%= render "layouts/rails_admin/sidebar_navigation" %>
</div>
<div class="col-sm-9 col-sm-offset-3 col-md-10 col-md-offset-2">
<div class="container-fluid">
<%= render template: 'layouts/rails_admin/content' %>
</div>
</div>
</div>
</div>
</body>
</html>