app/views/devise/registrations/_modal.html.haml
#SignUpModalForm.modal.fade{:role => "dialog"}
.modal-dialog
/ Modal content
.modal-content
= bootstrap_form_for(resource, :as => resource_name, :url => registration_path(resource_name)) do |f|
.modal-header
%button.close{"data-dismiss" => "modal", :type => "button"}
%h4.modal-title Crie uma conta
.modal-body
= f.email_field :email, label: 'Email', :required => true, :autofocus => true
= f.password_field :password, label: 'Senha', :required => true
= f.password_field :password_confirmation, label: 'Confirme a senha', :required => true
.modal-footer
%button.btn.btn-primary{:type => "submit"} Criar
%button.btn.btn-default{"data-dismiss" => "modal", :type => "button"} Fechar