retrospring/app/views/devise/sessions/new.html.haml

.container
  %h1 Sign in
  = render 'layouts/messages'

  = bootstrap_form_for(resource, as: resource_name, url: session_path(resource_name)) do |f|

    = f.text_field :login, autofocus: true, label: "User name"
    = f.password_field :password, autocomplete: "off", label: "Password"

    - if devise_mapping.rememberable?
      = f.check_box :remember_me
    
    = f.submit "Sign in"

  = render "devise/shared/links"