mastodon/app/views/layouts/auth.html.haml

- content_for :content do
  .logo-container
    %h1
      = link_to root_path do
        = render partial: 'application/logo', locals: { dim: 200 }
        %small= Rails.configuration.x.local_domain

  .form-container
    = yield

= render template: "layouts/application"